From d38e06ff4a567fe866c31a9a6e19cb77292913e9 Mon Sep 17 00:00:00 2001 From: Clinton Ebadi Date: Sun, 4 Oct 2009 17:10:39 -0400 Subject: [PATCH] Base Debian config for exim 4.69-9 --- ... => 20_exim4-config_local_deny_exceptions} | 25 +- conf.d/acl/30_exim4-config_check_rcpt | 43 +- conf.d/acl/40_exim4-config_check_data | 4 +- conf.d/auth/30_exim4-config_examples | 101 +- conf.d/main/01_exim4-config_listmacrosdefs | 98 +- conf.d/main/02_exim4-config_options | 30 +- conf.d/main/03_exim4-config_tlsoptions | 7 +- conf.d/main/20_mailman-macros | 22 - conf.d/retry/30_exim4-config | 14 +- conf.d/rewrite/31_exim4-config_rewriting | 5 +- conf.d/router/050_temporary_workarounds | 12 - conf.d/router/200_exim4-config_primary | 4 +- .../router/250_exim4-config_spamcheck_vmail | 9 - conf.d/router/300_exim4-config_real_local | 8 +- conf.d/router/310_exim4-config_virtual_user | 14 - conf.d/router/400_exim4-config_system_aliases | 2 +- conf.d/router/450_exim4-config_hosted_aliases | 26 - conf.d/router/470_exim4-config_mailman | 14 - .../480_exim4-config_hosted_wildcard_aliases | 26 - .../550_exim4-config_spamcheck_localuser | 10 - conf.d/router/600_exim4-config_userforward | 16 +- conf.d/router/700_exim4-config_procmail | 6 +- conf.d/router/800_exim4-config_maildrop | 4 +- conf.d/router/850_exim4-config_lowuid | 28 + conf.d/router/900_exim4-config_local_user | 4 +- conf.d/router/mmm_mail4root | 2 +- conf.d/transport/10_exim4-config_mailman | 15 - .../10_exim4-config_transport-macros | 12 + conf.d/transport/20_exim4-config_spamcheck | 23 - conf.d/transport/30_exim4-config_address_file | 2 - conf.d/transport/30_exim4-config_address_pipe | 4 - conf.d/transport/30_exim4-config_maildir_home | 12 +- .../transport/30_exim4-config_maildrop_pipe | 3 - .../transport/30_exim4-config_procmail_pipe | 24 +- conf.d/transport/30_exim4-config_remote_smtp | 15 +- .../30_exim4-config_remote_smtp_smarthost | 21 +- .../transport/30_exim4-config_trouble_users | 14 - .../35_exim4-config_address_directory | 3 - .../40_exim4-config_virtual_delivery | 16 - conf.d/transport/90_exim4-config_devnull | 8 - deliver-once | 16 - email-addresses | 1 - exim4.conf.template | 1996 +++++++++++++++++ get-token | 77 - mailmandb-ext | 2 - passwd.client | 7 + update-exim4.conf.conf | 15 +- 47 files changed, 2220 insertions(+), 600 deletions(-) rename conf.d/acl/{20_exim4-config_whitelist_local_deny => 20_exim4-config_local_deny_exceptions} (53%) delete mode 100644 conf.d/main/20_mailman-macros delete mode 100644 conf.d/router/050_temporary_workarounds delete mode 100644 conf.d/router/250_exim4-config_spamcheck_vmail delete mode 100644 conf.d/router/310_exim4-config_virtual_user delete mode 100644 conf.d/router/450_exim4-config_hosted_aliases delete mode 100644 conf.d/router/470_exim4-config_mailman delete mode 100644 conf.d/router/480_exim4-config_hosted_wildcard_aliases delete mode 100644 conf.d/router/550_exim4-config_spamcheck_localuser create mode 100644 conf.d/router/850_exim4-config_lowuid delete mode 100644 conf.d/transport/10_exim4-config_mailman create mode 100644 conf.d/transport/10_exim4-config_transport-macros delete mode 100644 conf.d/transport/20_exim4-config_spamcheck rewrite conf.d/transport/30_exim4-config_procmail_pipe (61%) delete mode 100644 conf.d/transport/30_exim4-config_trouble_users delete mode 100644 conf.d/transport/40_exim4-config_virtual_delivery delete mode 100644 conf.d/transport/90_exim4-config_devnull delete mode 100755 deliver-once delete mode 120000 email-addresses create mode 100644 exim4.conf.template delete mode 100755 get-token delete mode 100644 mailmandb-ext create mode 100644 passwd.client diff --git a/conf.d/acl/20_exim4-config_whitelist_local_deny b/conf.d/acl/20_exim4-config_local_deny_exceptions similarity index 53% rename from conf.d/acl/20_exim4-config_whitelist_local_deny rename to conf.d/acl/20_exim4-config_local_deny_exceptions index f9003f1..2372795 100644 --- a/conf.d/acl/20_exim4-config_whitelist_local_deny +++ b/conf.d/acl/20_exim4-config_local_deny_exceptions @@ -1,10 +1,10 @@ -### acl/20_exim4-config_whitelist_local_deny +### acl/20_exim4-config_local_deny_exceptions ################################# # This is used to determine whitelisted senders and hosts. -# It checks for CONFDIR/local_host_whitelist and -# CONFDIR/local_sender_whitelist. +# It checks for CONFDIR/host_local_deny_exceptions and +# CONFDIR/sender_local_deny_exceptions. # # It is meant to be used from some other acl entry. # @@ -12,8 +12,20 @@ # # If the files do not exist, the white list never matches, which is # the desired behaviour. +# +# The old file names CONFDIR/local_host_whitelist and +# CONFDIR/local_sender_whitelist will continue to be honored for a +# transition period. Their use is deprecated. -acl_whitelist_local_deny: +acl_local_deny_exceptions: + accept + hosts = ${if exists{CONFDIR/host_local_deny_exceptions}\ + {CONFDIR/host_local_deny_exceptions}\ + {}} + accept + senders = ${if exists{CONFDIR/sender_local_deny_exceptions}\ + {CONFDIR/sender_local_deny_exceptions}\ + {}} accept hosts = ${if exists{CONFDIR/local_host_whitelist}\ {CONFDIR/local_host_whitelist}\ @@ -27,6 +39,11 @@ acl_whitelist_local_deny: # modify this file. If you do it like we suggest, you'll end up with # a small performance penalty since there is an additional file being # accessed. This doesn't happen if you leave the macro unset. + .ifdef LOCAL_DENY_EXCEPTIONS_LOCAL_ACL_FILE + .include LOCAL_DENY_EXCEPTIONS_LOCAL_ACL_FILE + .endif + + # this is still supported for a transition period and is deprecated. .ifdef WHITELIST_LOCAL_DENY_LOCAL_ACL_FILE .include WHITELIST_LOCAL_DENY_LOCAL_ACL_FILE .endif diff --git a/conf.d/acl/30_exim4-config_check_rcpt b/conf.d/acl/30_exim4-config_check_rcpt index 92385e7..41682eb 100644 --- a/conf.d/acl/30_exim4-config_check_rcpt +++ b/conf.d/acl/30_exim4-config_check_rcpt @@ -53,7 +53,7 @@ acl_check_rcpt: # broad range of non-alphanumeric characters. .ifdef CHECK_RCPT_LOCAL_LOCALPARTS deny - domains = +local_domains : +unix_domains + domains = +local_domains local_parts = CHECK_RCPT_LOCAL_LOCALPARTS message = restricted characters in address .endif @@ -77,7 +77,7 @@ acl_check_rcpt: # from mounting certain kinds of attack on remote sites. .ifdef CHECK_RCPT_REMOTE_LOCALPARTS deny - domains = !+local_domains : !+unix_domains + domains = !+local_domains local_parts = CHECK_RCPT_REMOTE_LOCALPARTS message = restricted characters in address .endif @@ -92,7 +92,7 @@ acl_check_rcpt: .else local_parts = CHECK_RCPT_POSTMASTER .endif - domains = +local_domains : +unix_domains : +relay_to_domains + domains = +local_domains : +relay_to_domains # Deny unless the sender address can be verified. @@ -108,37 +108,17 @@ acl_check_rcpt: .ifdef CHECK_RCPT_VERIFY_SENDER deny message = Sender verification failed - !acl = acl_whitelist_local_deny + !acl = acl_local_deny_exceptions !verify = sender .endif - # hcoop-change: Add recommended lines from - # /usr/share/doc/mailman/README.EXIM.gz so that bounce messages - # get through, even if they are from a malformed address - - # Accept bounces to lists even if callbacks or other checks would fail - warn - message = X-WhitelistedRCPT-nohdrfromcallback: Yes - condition = ${if and {{match{$local_part}{(.*)-bounces\+.*}} \ - {def:domain} \ - {eq {${lookup{$local_part@$domain}lsearch{MAILMAN_DB}}} \ - {true}}} \ - {yes}{no}} - - accept - condition = ${if and {{match{$local_part}{(.*)-bounces\+.*}} \ - {def:domain} \ - {eq {${lookup{$local_part@$domain}lsearch{MAILMAN_DB}}} \ - {true}}} \ - {yes}{no}} - # Verify senders listed in local_sender_callout with a callout. # # In smarthost and satellite setups, this causes the callout to be # done to the smarthost. Verification will thus only be reliable if the # smarthost does reject illegal addresses in the SMTP dialog. deny - !acl = acl_whitelist_local_deny + !acl = acl_local_deny_exceptions senders = ${if exists{CONFDIR/local_sender_callout}\ {CONFDIR/local_sender_callout}\ {}} @@ -182,7 +162,7 @@ acl_check_rcpt: # relaying. Any other domain is rejected as being unacceptable for relaying. require message = relay not permitted - domains = +local_domains : +unix_domains : +relay_to_domains + domains = +local_domains : +relay_to_domains # We also require all accepted addresses to be verifiable. This check will @@ -199,7 +179,7 @@ acl_check_rcpt: # domains is to use a callout (add /callout), but please read the # documentation about callouts before doing this. deny - !acl = acl_whitelist_local_deny + !acl = acl_local_deny_exceptions recipients = ${if exists{CONFDIR/local_rcpt_callout}\ {CONFDIR/local_rcpt_callout}\ {}} @@ -214,7 +194,7 @@ acl_check_rcpt: # the black list. See exim4-config_files(5) for details. deny message = sender envelope address $sender_address is locally blacklisted here. If you think this is wrong, get in touch with postmaster - !acl = acl_whitelist_local_deny + !acl = acl_local_deny_exceptions senders = ${if exists{CONFDIR/local_sender_blacklist}\ {CONFDIR/local_sender_blacklist}\ {}} @@ -227,10 +207,10 @@ acl_check_rcpt: # RCPT statements rejected. # # The explicit white lists are honored as well as negative items in - # the black list. See /usr/share/doc/exim4-config/default_acl for details. + # the black list. See exim4-config_files(5) for details. deny message = sender IP address $sender_host_address is locally blacklisted here. If you think this is wrong, get in touch with postmaster - !acl = acl_whitelist_local_deny + !acl = acl_local_deny_exceptions hosts = ${if exists{CONFDIR/local_host_blacklist}\ {CONFDIR/local_host_blacklist}\ {}} @@ -263,8 +243,9 @@ acl_check_rcpt: .ifdef CHECK_RCPT_SPF deny message = [SPF] $sender_host_address is not allowed to send mail from ${if def:sender_address_domain {$sender_address_domain}{$sender_helo_name}}. \ - Please see http://www.openspf.org/why.html?sender=$sender_address&ip=$sender_host_address + Please see http://www.openspf.org/Why?scope=${if def:sender_address_domain {mfrom}{helo}};identity=${if def:sender_address_domain {$sender_address}{$sender_helo_name}};ip=$sender_host_address log_message = SPF check failed. + !acl = acl_local_deny_exceptions condition = ${run{/usr/bin/spfquery --ip \"$sender_host_address\" --mail-from \"$sender_address\" --helo \"$sender_helo_name\"}\ {no}{${if eq {$runrc}{1}{yes}{no}}}} diff --git a/conf.d/acl/40_exim4-config_check_data b/conf.d/acl/40_exim4-config_check_data index fb219a0..958639d 100644 --- a/conf.d/acl/40_exim4-config_check_data +++ b/conf.d/acl/40_exim4-config_check_data @@ -14,7 +14,7 @@ acl_check_data: .ifdef CHECK_DATA_VERIFY_HEADER_SYNTAX deny message = Message headers fail syntax check - !acl = acl_whitelist_local_deny + !acl = acl_local_deny_exceptions !verify = header_syntax .endif @@ -24,7 +24,7 @@ acl_check_data: .ifdef CHECK_DATA_VERIFY_HEADER_SENDER deny message = No verifiable sender address in message headers - !acl = acl_whitelist_local_deny + !acl = acl_local_deny_exceptions !verify = header_sender .endif diff --git a/conf.d/auth/30_exim4-config_examples b/conf.d/auth/30_exim4-config_examples index 3cb9f1f..13853da 100644 --- a/conf.d/auth/30_exim4-config_examples +++ b/conf.d/auth/30_exim4-config_examples @@ -6,7 +6,7 @@ # local exim is SMTP server and clients authenticate to the local exim. # They allow two styles of plain-text authentication against an -# CONFDIR/passwd file whose syntax is described in exim_passwd(5). +# CONFDIR/passwd file whose syntax is described in exim4_passwd(5). # Hosts that are allowed to use AUTH are defined by the # auth_advertise_hosts option in the main configuration. The default is @@ -210,35 +210,6 @@ cram_md5: client_name = ${extract{1}{:}{${lookup{$host}nwildlsearch{CONFDIR/passwd.client}{$value}fail}}} client_secret = ${extract{2}{:}{${lookup{$host}nwildlsearch{CONFDIR/passwd.client}{$value}fail}}} -# hcoop-change: Authenticate against either /etc/courier/exim.dat or -# SASL for plain and login authenticators - -hcoop_plain: - driver = plaintext - public_name = PLAIN - server_prompts = : - server_condition = \ - ${if or {{crypteq {$auth3} \ - {${extract{systempw}{${tr{${lookup{$auth2} \ - dbm{/etc/courier/exim.dat} \ - }}{|}{ }}}}}} \ - {saslauthd {{$auth2}{$auth3}{exim4}}}}} - server_set_id = $auth2 - server_advertise_condition = ${if eq{$tls_cipher}{}{}{*}} - -hcoop_login: - driver = plaintext - public_name = LOGIN - server_prompts = "Username:: : Password::" - server_condition = \ - ${if or {{crypteq {$auth2} \ - {${extract{systempw}{${tr{${lookup{$auth1} \ - dbm{/etc/courier/exim.dat} \ - }}{|}{ }}}}}} \ - {saslauthd {{$auth1}{$auth2}{exim4}}}}} - server_set_id = $auth1 - server_advertise_condition = ${if eq{$tls_cipher}{}{}{*}} - # this returns the matching line from passwd.client and doubles all ^ PASSWDLINE=${sg{\ ${lookup{$host}nwildlsearch{CONFDIR/passwd.client}{$value}fail}\ @@ -247,39 +218,37 @@ PASSWDLINE=${sg{\ {^^}\ } -# hcoop-change: Comment out plain and login authenticators - -# plain: -# driver = plaintext -# public_name = PLAIN -# .ifndef AUTH_CLIENT_ALLOW_NOTLS_PASSWORDS -# client_send = "<; ${if !eq{$tls_cipher}{}\ -# {^${extract{1}{:}{PASSWDLINE}}\ -# ^${sg{PASSWDLINE}{\\N([^:]+:)(.*)\\N}{\\$2}}\ -# }fail}" -# .else -# client_send = "<; ^${extract{1}{:}{PASSWDLINE}}\ -# ^${sg{PASSWDLINE}{\\N([^:]+:)(.*)\\N}{\\$2}}" -# .endif - -# login: -# driver = plaintext -# public_name = LOGIN -# .ifndef AUTH_CLIENT_ALLOW_NOTLS_PASSWORDS -# # Return empty string if not non-TLS AND looking up $host in passwd-file -# # yields a non-empty string; fail otherwise. -# client_send = "<; ${if and{\ -# {!eq{$tls_cipher}{}}\ -# {!eq{PASSWDLINE}{}}\ -# }\ -# {}fail}\ -# ; ${extract{1}{::}{PASSWDLINE}}\ -# ; ${sg{PASSWDLINE}{\\N([^:]+:)(.*)\\N}{\\$2}}" -# .else -# # Return empty string if looking up $host in passwd-file yields a -# # non-empty string; fail otherwise. -# client_send = "<; ${if !eq{PASSWDLINE}{}\ -# {}fail}\ -# ; ${extract{1}{::}{PASSWDLINE}}\ -# ; ${sg{PASSWDLINE}{\\N([^:]+:)(.*)\\N}{\\$2}}" -# .endif +plain: + driver = plaintext + public_name = PLAIN +.ifndef AUTH_CLIENT_ALLOW_NOTLS_PASSWORDS + client_send = "<; ${if !eq{$tls_cipher}{}\ + {^${extract{1}{:}{PASSWDLINE}}\ + ^${sg{PASSWDLINE}{\\N([^:]+:)(.*)\\N}{\\$2}}\ + }fail}" +.else + client_send = "<; ^${extract{1}{:}{PASSWDLINE}}\ + ^${sg{PASSWDLINE}{\\N([^:]+:)(.*)\\N}{\\$2}}" +.endif + +login: + driver = plaintext + public_name = LOGIN +.ifndef AUTH_CLIENT_ALLOW_NOTLS_PASSWORDS + # Return empty string if not non-TLS AND looking up $host in passwd-file + # yields a non-empty string; fail otherwise. + client_send = "<; ${if and{\ + {!eq{$tls_cipher}{}}\ + {!eq{PASSWDLINE}{}}\ + }\ + {}fail}\ + ; ${extract{1}{::}{PASSWDLINE}}\ + ; ${sg{PASSWDLINE}{\\N([^:]+:)(.*)\\N}{\\$2}}" +.else + # Return empty string if looking up $host in passwd-file yields a + # non-empty string; fail otherwise. + client_send = "<; ${if !eq{PASSWDLINE}{}\ + {}fail}\ + ; ${extract{1}{::}{PASSWDLINE}}\ + ; ${sg{PASSWDLINE}{\\N([^:]+:)(.*)\\N}{\\$2}}" +.endif diff --git a/conf.d/main/01_exim4-config_listmacrosdefs b/conf.d/main/01_exim4-config_listmacrosdefs index 09908e0..8e51605 100644 --- a/conf.d/main/01_exim4-config_listmacrosdefs +++ b/conf.d/main/01_exim4-config_listmacrosdefs @@ -1,4 +1,3 @@ - ###################################################################### # Runtime configuration file for Exim 4 (Debian Packaging) # ###################################################################### @@ -11,10 +10,6 @@ # If you find this comment anywhere else, somebody copied it there. # Documentation about the Debian exim4 configuration scheme can be # found in /usr/share/doc/exim4-base/README.Debian.gz. -# -# Strings like DEBCONFsomethingDEBCONF are replaced by installation -# dependent values by update-exim4.conf, the script which builds the -# actual configuration from the templates. ###################################################################### ###################################################################### @@ -32,104 +27,54 @@ exim_path = /usr/sbin/exim4 CONFDIR = /etc/exim4 .endif -# This sets a macro DC_minimaldns if dc_minimaldns=true. If -# dc_minimaldns=false, this expands to an empty line. -.ifndef DC_minimaldns -DEBCONFminimaldnsDEBCONF -.endif - -# Create other macros from Debconf. Macros created here are used in -# other places in exim config. -.ifndef DC_visiblename -DC_visiblename=DEBCONFvisiblenameDEBCONF -.endif +# debconf-driven macro definitions get inserted after this line +UPEX4CmacrosUPEX4C = 1 # Create domain and host lists for relay control # '@' refers to 'the name of the local host' # List of domains considered local for exim. Domains not listed here # need to be deliverable remotely. -# hcoop-change: comment out -#.ifndef MAIN_LOCAL_DOMAINS -#MAIN_LOCAL_DOMAINS = DEBCONFlocal_domainsDEBCONF -#.endif -#domainlist local_domains = MAIN_LOCAL_DOMAINS +domainlist local_domains = MAIN_LOCAL_DOMAINS # List of recipient domains to relay _to_. Use this list if you're - # for example - fallback MX or mail gateway for domains. -# hcoop-change: comment out -#.ifndef MAIN_RELAY_TO_DOMAINS -#MAIN_RELAY_TO_DOMAINS = DEBCONFrelay_domainsDEBCONF -#.endif -#domainlist relay_to_domains = MAIN_RELAY_TO_DOMAINS - -# hcoop-change: List of domains that accept mail from local users. -# Mail sent to other domains we manage will be transformed into a -# local address by /etc/aliases. -domainlist unix_domains = hcoop.net:deleuze.hcoop.net:hopper.hcoop.net:mire.hcoop.net:outpost.hcoop.net:localhost +domainlist relay_to_domains = MAIN_RELAY_TO_DOMAINS # List of sender networks (IP addresses) to _unconditionally_ relay # _for_. If you intend to be SMTP AUTH server, you do not need to enter # anything here. -.ifndef MAIN_RELAY_NETS -MAIN_RELAY_NETS = DEBCONFrelay_netsDEBCONF -.endif hostlist relay_from_hosts = MAIN_RELAY_NETS -# Specify the domain you want to be added to all unqualified addresses -# here. Unqualified addresses are accepted only from local callers by -# default. The recipient_unqualified_hosts option can be used to permit -# unqualified addresses from remote sources. -# If qualify_domain is not set, the primary_hostname value is used for -# qualification. -# The ifdef bracket makes sure that an empty debconf value is correctly -# translated to "unset". -.ifdef DC_visiblename -qualify_domain = DC_visiblename +# Decide which domain to use to add to all unqualified addresses. +# If MAIN_PRIMARY_HOSTNAME_AS_QUALIFY_DOMAIN is defined, the primary +# hostname is used. If not, but MAIN_QUALIFY_DOMAIN is set, the value +# of MAIN_QUALIFY_DOMAIN is used. If both macros are not defined, +# the first line of /etc/mailname is used. +.ifndef MAIN_PRIMARY_HOSTNAME_AS_QUALIFY_DOMAIN +.ifndef MAIN_QUALIFY_DOMAIN +qualify_domain = ETC_MAILNAME +.else +qualify_domain = MAIN_QUALIFY_DOMAIN .endif - -# only used for satellite-system -.ifndef DCreadhost -DCreadhost = DEBCONFreadhostDEBCONF -.endif - -#for satellite and smarthost-systems -.ifndef DCsmarthost -DCsmarthost = DEBCONFsmarthostDEBCONF .endif # listen on all all interfaces? .ifdef MAIN_LOCAL_INTERFACES local_interfaces = MAIN_LOCAL_INTERFACES -.else -DEBCONFlistenonpublicDEBCONF .endif .ifndef LOCAL_DELIVERY # The default transport, set in /etc/exim4/update-exim4.conf.conf, # defaulting to mail_spool. See CONFDIR/conf.d/transport/ for possibilities -LOCAL_DELIVERY=DEBCONFlocaldeliveryDEBCONF +LOCAL_DELIVERY=mail_spool .endif # The gecos field in /etc/passwd holds not only the name. see passwd(5). gecos_pattern = ^([^,:]*) gecos_name = $1 - -# define a macro DCconfig_smarthost, DCconfig_satellite, etc. we need this -# for .ifdef ... .endif -.ifndef DCconfig_satellite -.ifndef DCconfig_internet -.ifndef DCconfig_local -.ifndef DCconfig_smarthost -DCconfig_DEBCONFconfigtypeDEBCONF = 1 -.endif -.endif -.endif -.endif - - # define macros to be used in acl/30_exim4-config_check_rcpt to check # recipient local parts for strange characters. @@ -150,17 +95,6 @@ CHECK_RCPT_REMOTE_LOCALPARTS = ^[./|] : ^.*[@%!`#&?] : ^.*/\\.\\./ .endif # always log tls_peerdn as we use TLS for outgoing connects by default -# hcoop-change: add +tls_ciper .ifndef MAIN_LOG_SELECTOR -MAIN_LOG_SELECTOR = +tls_cipher +tls_peerdn +MAIN_LOG_SELECTOR = +tls_peerdn .endif - -# hcoop-change: use file_transport = address_file for /etc/aliases -# delivery, as per old configuration -SYSTEM_ALIASES_FILE_TRANSPORT = address_file - -# hcoop-change: deliver mail to AFS -MAILDIR_HOME_MAILDIR_LOCATION = /afs/hcoop.net/common/email - -# hcoop-change: enable TLS -MAIN_TLS_ENABLE = yes diff --git a/conf.d/main/02_exim4-config_options b/conf.d/main/02_exim4-config_options index 0b9a66c..44cb455 100644 --- a/conf.d/main/02_exim4-config_options +++ b/conf.d/main/02_exim4-config_options @@ -67,6 +67,8 @@ message_size_limit = MESSAGE_SIZE_LIMIT # in the default config since it is seldomly used and frequently abused. # Domain literal support also needs a special router, which is automatically # enabled if you use the enable macro MAIN_ALLOW_DOMAIN_LITERALS. +# Additionally, you might want to make your local IP addresses (or @[]) +# local domains. .ifdef MAIN_ALLOW_DOMAIN_LITERALS allow_domain_literals .endif @@ -85,7 +87,9 @@ host_lookup = MAIN_HOST_LOOKUP # In a minimaldns setup, update-exim4.conf guesses the hostname and # dumps it here to avoid DNS lookups being done at Exim run time. -DEBCONF_hardcode_primary_hostname_DEBCONF +.ifdef MAIN_HARDCODE_PRIMARY_HOSTNAME +primary_hostname = MAIN_HARDCODE_PRIMARY_HOSTNAME +.endif # The settings below, which are actually the same as the defaults in the # code, cause Exim to make RFC 1413 (ident) callbacks for all incoming SMTP @@ -100,6 +104,18 @@ DEBCONF_hardcode_primary_hostname_DEBCONF # rfc1413_hosts = * # rfc1413_query_timeout = 5s +# When using an external relay tester (such as rt.njabl.org and/or the +# currently defunct relay-test.mail-abuse.org, the test may be aborted +# since exim complains about "too many nonmail commands". If you want +# the test to complete, add the host from where "your" relay tester +# connects from to the MAIN_SMTP_ACCEPT_MAX_NOMAIL_HOSTS macro. +# Please note that a non-empty setting may cause extra DNS lookups to +# happen, which is the reason why this option is commented out in the +# default settings. +# MAIN_SMTP_ACCEPT_MAX_NOMAIL_HOSTS = !rt.njabl.org +.ifdef MAIN_SMTP_ACCEPT_MAX_NOMAIL_HOSTS +smtp_accept_max_nonmail_hosts = MAIN_SMTP_ACCEPT_MAX_NOMAIL_HOSTS +.endif # By default, exim forces a Sender: header containing the local # account name at the local host name in all locally submitted messages @@ -180,15 +196,5 @@ trusted_groups = MAIN_TRUSTED_GROUPS # SMTP Banner. The example includes the Debian version in the SMTP dialog -# MAIN_SMTP_BANNER = "${primary_hostname} ESMTP Exim ${version_number} (Debian package DEBCONFpackageversionDEBCONF) ${tod_full}" +# MAIN_SMTP_BANNER = "${primary_hostname} ESMTP Exim ${version_number} (Debian package MAIN_PACKAGE_VERSION) ${tod_full}" # smtp_banner = $smtp_active_hostname ESMTP Exim $version_number $tod_full - - -# hcoop-change: raise limit for incoming SMTP connections -smtp_accept_max = 95 - -# hcoop-change: expire retry data after a single day -retry_data_expire = 1d - -# hcoop-change: don't penalize hosts past 4 hours -retry_interval_max = 4h diff --git a/conf.d/main/03_exim4-config_tlsoptions b/conf.d/main/03_exim4-config_tlsoptions index 9b85499..a098f9b 100644 --- a/conf.d/main/03_exim4-config_tlsoptions +++ b/conf.d/main/03_exim4-config_tlsoptions @@ -2,10 +2,9 @@ ### main/03_exim4-config_tlsoptions ################################# -# TLS/SSL configuration. +# TLS/SSL configuration for exim as an SMTP server. # See /usr/share/doc/exim4-base/README.Debian.gz for explanations. - .ifdef MAIN_TLS_ENABLE # Defines what hosts to 'advertise' STARTTLS functionality to. The # default, *, will advertise to all hosts that connect with EHLO. @@ -68,6 +67,10 @@ tls_verify_hosts = MAIN_TLS_VERIFY_HOSTS # `tls_verify_certificates' but do not abort the connection if there is no # certificate or if the certificate presented does not match. (This # condition can be tested for in ACLs through `verify = certificate') +# By default, this check is done for all hosts. It is known that some +# clients (including incredimail's version downloadable in February +# 2008) choke on this. To disable, set MAIN_TLS_TRY_VERIFY_HOSTS to an +# empty value. .ifndef MAIN_TLS_TRY_VERIFY_HOSTS MAIN_TLS_TRY_VERIFY_HOSTS = * .endif diff --git a/conf.d/main/20_mailman-macros b/conf.d/main/20_mailman-macros deleted file mode 100644 index 38bd7c1..0000000 --- a/conf.d/main/20_mailman-macros +++ /dev/null @@ -1,22 +0,0 @@ -# Home dir for your Mailman installation -- aka Mailman's prefix -# directory. -# By default this is set to "/usr/local/mailman" -# On a Red Hat/Fedora system using the RPM use "/var/mailman" -# On Debian using the deb package use "/var/lib/mailman" -# This is normally the same as ~mailman -MAILMAN_HOME=/var/lib/mailman - -# The path of the Mailman mail wrapper script -MAILMAN_WRAP=MAILMAN_HOME/mail/mailman - -# User and group for Mailman, should match your --with-mail-gid -# switch to Mailman's configure script. -# Value is normally "mailman" -MAILMAN_USER=list -MAILMAN_GROUP=list - -# These values are derived from the ones above and should not need -# editing unless you have munged your mailman installation - -# hcoop-change: Used for looking up a user and domain Mailman mapping. -MAILMAN_DB=/etc/exim4/mailmandb diff --git a/conf.d/retry/30_exim4-config b/conf.d/retry/30_exim4-config index fef73a4..87a6d5d 100644 --- a/conf.d/retry/30_exim4-config +++ b/conf.d/retry/30_exim4-config @@ -12,18 +12,8 @@ # effective retry-time depends on the frequenzy of queue-running, too. # See QUEUEINTERVAL in /etc/default/exim4. -# hcoop-change: Customize all of this to not penalize local users so -# much for timeouts. - # Address or Domain Error Retries # ----------------- ----- ------- -# Local users who might have temporary AFS-related issues -localhost * F,4d,1m -hcoop.net * F,4d,1m -rosasharn.com * F,4d,1m -# Deal with greylisting -megacz.com * F,4d,3m -yahoo.com * F,4d,3m -# Defaults -* * F,4h,10m; G,16h,1h,1.5; F,4d,6h +* * F,2h,15m; G,16h,1h,1.5; F,4d,6h + diff --git a/conf.d/rewrite/31_exim4-config_rewriting b/conf.d/rewrite/31_exim4-config_rewriting index 25a2209..b11b797 100644 --- a/conf.d/rewrite/31_exim4-config_rewriting +++ b/conf.d/rewrite/31_exim4-config_rewriting @@ -5,9 +5,12 @@ # This rewriting rule is particularily useful for dialup users who # don't have their own domain, but could be useful for anyone. # It looks up the real address of all local users in a file +.ifndef NO_EAA_REWRITE_REWRITE *@+local_domains "${lookup{${local_part}}lsearch{/etc/email-addresses}\ {$value}fail}" Ffrs # identical rewriting rule for /etc/mailname -DEBCONFrewriteemailaddresses_mailnameDEBCONF +*@ETC_MAILNAME "${lookup{${local_part}}lsearch{/etc/email-addresses}\ + {$value}fail}" Ffrs +.endif diff --git a/conf.d/router/050_temporary_workarounds b/conf.d/router/050_temporary_workarounds deleted file mode 100644 index e329166..0000000 --- a/conf.d/router/050_temporary_workarounds +++ /dev/null @@ -1,12 +0,0 @@ - -# hcoop-change: Deal with users who are causing trouble to the mail -# system. - -# trouble_users_router: -# debug_print = "R: trouble_users for $local_part@$domain" -# driver = accept -# domains = +unix_domains -# condition = "${if eq {$local_part}{omry} {1}{0}}" -# local_part_prefix = real- -# check_local_user -# transport = trouble_users diff --git a/conf.d/router/200_exim4-config_primary b/conf.d/router/200_exim4-config_primary index 8025e2a..8b2bafb 100644 --- a/conf.d/router/200_exim4-config_primary +++ b/conf.d/router/200_exim4-config_primary @@ -16,7 +16,7 @@ dnslookup_relay_to_domains: debug_print = "R: dnslookup_relay_to_domains for $local_part@$domain" driver = dnslookup - domains = ! +local_domains : ! +unix_domains : +relay_to_domains + domains = ! +local_domains : +relay_to_domains transport = remote_smtp same_domain_copy_routing = yes no_more @@ -29,7 +29,7 @@ dnslookup_relay_to_domains: dnslookup: debug_print = "R: dnslookup for $local_part@$domain" driver = dnslookup - domains = ! +local_domains : ! +unix_domains + domains = ! +local_domains transport = remote_smtp same_domain_copy_routing = yes # ignore private rfc1918 and APIPA addresses diff --git a/conf.d/router/250_exim4-config_spamcheck_vmail b/conf.d/router/250_exim4-config_spamcheck_vmail deleted file mode 100644 index 1b46a4a..0000000 --- a/conf.d/router/250_exim4-config_spamcheck_vmail +++ /dev/null @@ -1,9 +0,0 @@ -# hcoop-change: Pass email through spamc if it has not already been -# scanned. - -spamcheck_router_vmail: - no_verify - condition = "${if !eq {$received_protocol}{spam-scanned} {1}{0}}" - require_files = /etc/spamassassin/addrs/${local_part}@${domain} - driver = accept - transport = spamcheck diff --git a/conf.d/router/300_exim4-config_real_local b/conf.d/router/300_exim4-config_real_local index 249920c..34ea282 100644 --- a/conf.d/router/300_exim4-config_real_local +++ b/conf.d/router/300_exim4-config_real_local @@ -6,12 +6,16 @@ # processing. This can be used to inform a user of a broken .forward # file, for example. The userforward router does this. -# hcoop-change: Use unix_domains rather than local_domains. +COND_LOCAL_SUBMITTER = "\ + ${if match_ip{$sender_host_address}{:@[]}\ + {1}{0}\ + }" real_local: debug_print = "R: real_local for $local_part@$domain" driver = accept - domains = +unix_domains + domains = +local_domains + condition = COND_LOCAL_SUBMITTER local_part_prefix = real- check_local_user transport = LOCAL_DELIVERY diff --git a/conf.d/router/310_exim4-config_virtual_user b/conf.d/router/310_exim4-config_virtual_user deleted file mode 100644 index b2f28f8..0000000 --- a/conf.d/router/310_exim4-config_virtual_user +++ /dev/null @@ -1,14 +0,0 @@ -# hcoop-change: Route mail for hosted domains - -virtual_user: - driver = accept - transport = virtual_delivery - # Look up the parameters for this email address, and store them in - # $address_data for later use. If no data exists for this address, - # then "fail", which causes Exim to move on to the next router. - # This allows us to access the contents of $address_data in the - # virtual_delivery transport later on, without having to do multiple - # accesses to exim.dat. - address_data = ${tr{${lookup{$local_part@$domain} \ - dbm{/etc/courier/exim.dat}{$value} fail }} \ - {|}{ }} diff --git a/conf.d/router/400_exim4-config_system_aliases b/conf.d/router/400_exim4-config_system_aliases index 680b2ba..f5f5f1c 100644 --- a/conf.d/router/400_exim4-config_system_aliases +++ b/conf.d/router/400_exim4-config_system_aliases @@ -23,7 +23,7 @@ system_aliases: debug_print = "R: system_aliases for $local_part@$domain" driver = redirect - domains = +unix_domains + domains = +local_domains allow_fail allow_defer data = ${lookup{$local_part}lsearch{/etc/aliases}} diff --git a/conf.d/router/450_exim4-config_hosted_aliases b/conf.d/router/450_exim4-config_hosted_aliases deleted file mode 100644 index 21796e3..0000000 --- a/conf.d/router/450_exim4-config_hosted_aliases +++ /dev/null @@ -1,26 +0,0 @@ - -# hcoop-change: Custom rule that looks up the local_part and domain -# in /etc/aliases.hosted. - -hosted_aliases: - debug_print = "R: hosted_aliases for $local_part@$domain" - driver = redirect - domains = +local_domains - allow_fail - allow_defer - data = ${lookup{$local_part@$domain}lsearch{/etc/aliases.hosted}} - .ifdef SYSTEM_ALIASES_USER - user = SYSTEM_ALIASES_USER - .endif - .ifdef SYSTEM_ALIASES_GROUP - group = SYSTEM_ALIASES_GROUP - .endif - .ifdef SYSTEM_ALIASES_FILE_TRANSPORT - file_transport = SYSTEM_ALIASES_FILE_TRANSPORT - .endif - .ifdef SYSTEM_ALIASES_PIPE_TRANSPORT - pipe_transport = SYSTEM_ALIASES_PIPE_TRANSPORT - .endif - .ifdef SYSTEM_ALIASES_DIRECTORY_TRANSPORT - directory_transport = SYSTEM_ALIASES_DIRECTORY_TRANSPORT - .endif diff --git a/conf.d/router/470_exim4-config_mailman b/conf.d/router/470_exim4-config_mailman deleted file mode 100644 index 2187fbc..0000000 --- a/conf.d/router/470_exim4-config_mailman +++ /dev/null @@ -1,14 +0,0 @@ -# hcoop-change: Route mail for mailing lists. - -mailman_router: - driver = accept - domains = +mm_domains - condition = ${lookup{$local_part@$domain}lsearch{MAILMAN_DB}} - local_part_suffix_optional - local_part_suffix = -admin : \ - -bounces : -bounces+* : \ - -confirm : -confirm+* : \ - -join : -leave : \ - -owner : -request : \ - -subscribe : -unsubscribe - transport = mailman_transport diff --git a/conf.d/router/480_exim4-config_hosted_wildcard_aliases b/conf.d/router/480_exim4-config_hosted_wildcard_aliases deleted file mode 100644 index 6dc6771..0000000 --- a/conf.d/router/480_exim4-config_hosted_wildcard_aliases +++ /dev/null @@ -1,26 +0,0 @@ - -# hcoop-change: Custom rule that looks up the local_part and domain -# in /etc/aliases.wildcard. - -hosted_wildcard_aliases: - debug_print = "R: hosted_aliases for $local_part@$domain" - driver = redirect - domains = +local_domains - allow_fail - allow_defer - data = ${lookup{$local_part@$domain}lsearch*@{/etc/aliases.wildcard}} - .ifdef SYSTEM_ALIASES_USER - user = SYSTEM_ALIASES_USER - .endif - .ifdef SYSTEM_ALIASES_GROUP - group = SYSTEM_ALIASES_GROUP - .endif - .ifdef SYSTEM_ALIASES_FILE_TRANSPORT - file_transport = SYSTEM_ALIASES_FILE_TRANSPORT - .endif - .ifdef SYSTEM_ALIASES_PIPE_TRANSPORT - pipe_transport = SYSTEM_ALIASES_PIPE_TRANSPORT - .endif - .ifdef SYSTEM_ALIASES_DIRECTORY_TRANSPORT - directory_transport = SYSTEM_ALIASES_DIRECTORY_TRANSPORT - .endif diff --git a/conf.d/router/550_exim4-config_spamcheck_localuser b/conf.d/router/550_exim4-config_spamcheck_localuser deleted file mode 100644 index 1bedd3f..0000000 --- a/conf.d/router/550_exim4-config_spamcheck_localuser +++ /dev/null @@ -1,10 +0,0 @@ -# hcoop-change: Pass email through spamc if its recipient is a valid -# HCoop user and it has not yet been scanned. - -spamcheck_router_localuser: - no_verify - condition = "${if !eq {$received_protocol}{spam-scanned} {1}{0}}" - check_local_user - require_files = /etc/spamassassin/addrs/${local_part}@localhost - driver = accept - transport = spamcheck diff --git a/conf.d/router/600_exim4-config_userforward b/conf.d/router/600_exim4-config_userforward index f8d1d3c..59259ca 100644 --- a/conf.d/router/600_exim4-config_userforward +++ b/conf.d/router/600_exim4-config_userforward @@ -18,27 +18,19 @@ # The four transports specified at the end are those that are used when # forwarding generates a direct delivery to a directory, or a file, or to a # pipe, or sets up an auto-reply, respectively. - -# hcoop-change: Use unix_domains rather than local_domains. Use -# .public/.forward rather than .forward. Do not verify the owner and -# group of the .forward file. - +# userforward: debug_print = "R: userforward for $local_part@$domain" driver = redirect - domains = +unix_domains + domains = +local_domains check_local_user - check_owner = false - check_group = false - file = $home/.public/.forward - require_files = $local_part:$home/.public/.forward + file = $home/.forward + require_files = $local_part:$home/.forward no_verify no_expn check_ancestor allow_filter forbid_smtp_code = true -# forbid_filter_run = true -# forbid_pipe = true directory_transport = address_directory file_transport = address_file pipe_transport = address_pipe diff --git a/conf.d/router/700_exim4-config_procmail b/conf.d/router/700_exim4-config_procmail index 6e2edcb..8d827c7 100644 --- a/conf.d/router/700_exim4-config_procmail +++ b/conf.d/router/700_exim4-config_procmail @@ -1,16 +1,14 @@ -# hcoop-change: Use unix_domains rather than local_domains. - procmail: debug_print = "R: procmail for $local_part@$domain" driver = accept - domains = +unix_domains + domains = +local_domains check_local_user transport = procmail_pipe # emulate OR with "if exists"-expansion require_files = ${local_part}:\ ${if exists{/etc/procmailrc}\ - {/etc/procmailrc}{${home}/.procmail.d/procmailrc}}:\ + {/etc/procmailrc}{${home}/.procmailrc}}:\ +/usr/bin/procmail no_verify no_expn diff --git a/conf.d/router/800_exim4-config_maildrop b/conf.d/router/800_exim4-config_maildrop index ab63263..0c57fc6 100644 --- a/conf.d/router/800_exim4-config_maildrop +++ b/conf.d/router/800_exim4-config_maildrop @@ -2,12 +2,10 @@ ### router/800_exim4-config_maildrop ################################# -# hcoop-change: Use unix_domains rather than local_domains. - maildrop: debug_print = "R: maildrop for $local_part@$domain" driver = accept - domains = +unix_domains + domains = +local_domains check_local_user transport = maildrop_pipe require_files = ${local_part}:${home}/.mailfilter:+/usr/bin/maildrop diff --git a/conf.d/router/850_exim4-config_lowuid b/conf.d/router/850_exim4-config_lowuid new file mode 100644 index 0000000..10e09a4 --- /dev/null +++ b/conf.d/router/850_exim4-config_lowuid @@ -0,0 +1,28 @@ + +### router/850_exim4-config_lowuid +################################# + +.ifndef FIRST_USER_ACCOUNT_UID +FIRST_USER_ACCOUNT_UID = 0 +.endif + +.ifndef DEFAULT_SYSTEM_ACCOUNT_ALIAS +DEFAULT_SYSTEM_ACCOUNT_ALIAS = :fail: no mail to system accounts +.endif + +COND_SYSTEM_USER_AND_REMOTE_SUBMITTER = "\ + ${if and{{! match_ip{$sender_host_address}{:@[]}}\ + {<{$local_user_uid}{FIRST_USER_ACCOUNT_UID}}}\ + {1}{0}\ + }" + +lowuid_aliases: + debug_print = "R: lowuid_aliases for $local_part@$domain (UID $local_user_uid)" + check_local_user + driver = redirect + allow_fail + domains = +local_domains + condition = COND_SYSTEM_USER_AND_REMOTE_SUBMITTER + data = ${if exists{/etc/exim4/lowuid-aliases}\ + {${lookup{$local_part}lsearch{/etc/exim4/lowuid-aliases}\ + {$value}{DEFAULT_SYSTEM_ACCOUNT_ALIAS}}}{DEFAULT_SYSTEM_ACCOUNT_ALIAS}} diff --git a/conf.d/router/900_exim4-config_local_user b/conf.d/router/900_exim4-config_local_user index 7d13100..423c729 100644 --- a/conf.d/router/900_exim4-config_local_user +++ b/conf.d/router/900_exim4-config_local_user @@ -5,12 +5,10 @@ # This router matches local user mailboxes. If the router fails, the error # message is "Unknown user". -# hcoop-change: Use unix_domains rather than local_domains. - local_user: debug_print = "R: local_user for $local_part@$domain" driver = accept - domains = +unix_domains + domains = +local_domains check_local_user local_parts = ! root transport = LOCAL_DELIVERY diff --git a/conf.d/router/mmm_mail4root b/conf.d/router/mmm_mail4root index 202be70..88017ba 100644 --- a/conf.d/router/mmm_mail4root +++ b/conf.d/router/mmm_mail4root @@ -8,7 +8,7 @@ mail4root: debug_print = "R: mail4root for $local_part@$domain" driver = redirect - domains = +unix_domains + domains = +local_domains data = /var/mail/mail file_transport = address_file local_parts = root diff --git a/conf.d/transport/10_exim4-config_mailman b/conf.d/transport/10_exim4-config_mailman deleted file mode 100644 index db67db6..0000000 --- a/conf.d/transport/10_exim4-config_mailman +++ /dev/null @@ -1,15 +0,0 @@ -# hcoop-change: Transport for mailman lists - -mailman_transport: - debug_print = "T: mailman for $local_part@$domain" - driver = pipe - command = MAILMAN_WRAP \ - '${if def:local_part_suffix \ - {${sg{$local_part_suffix}{-(\\w+)(\\+.*)?}{\$1}}} \ - {post}}' \ - $local_part - current_directory = MAILMAN_HOME - home_directory = MAILMAN_HOME - user = MAILMAN_USER - group = MAILMAN_GROUP - freeze_exec_fail = true diff --git a/conf.d/transport/10_exim4-config_transport-macros b/conf.d/transport/10_exim4-config_transport-macros new file mode 100644 index 0000000..2c885bc --- /dev/null +++ b/conf.d/transport/10_exim4-config_transport-macros @@ -0,0 +1,12 @@ + +### transport/10_exim4-config_transport-macros +################################# + +.ifdef HIDE_MAILNAME +REMOTE_SMTP_HEADERS_REWRITE=*@+local_domains $1@DCreadhost frs : *@ETC_MAILNAME $1@DCreadhost frs +REMOTE_SMTP_RETURN_PATH=${if match_domain{$sender_address_domain}{+local_domains}{${sender_address_local_part}@DCreadhost}{${if match_domain{$sender_address_domain}{ETC_MAILNAME}{${sender_address_local_part}@DCreadhost}fail}}} +.endif + +.ifdef REMOTE_SMTP_HELO_FROM_DNS +REMOTE_SMTP_HELO_DATA=${lookup dnsdb {ptr=$sending_ip_address}{$value}{$primary_hostname}} +.endif diff --git a/conf.d/transport/20_exim4-config_spamcheck b/conf.d/transport/20_exim4-config_spamcheck deleted file mode 100644 index 910c8bd..0000000 --- a/conf.d/transport/20_exim4-config_spamcheck +++ /dev/null @@ -1,23 +0,0 @@ -# hcoop-change: Pass email through spamc, back through exim again, -# marking it as scanned. Also, remove any pre-existing X-Spam -# headers from the message. - -spamcheck: - debug_print = "T: spamassassin_pipe for $local_part@$domain" - driver = pipe - command = /usr/sbin/exim4 -oMr spam-scanned -bS - use_bsmtp - transport_filter = /usr/bin/spamc -x - home_directory = "/tmp/exim4" - current_directory = "/tmp/exim4" - user = Debian-exim - group = Debian-exim - return_fail_output = true - return_path_add = false - log_fail_output = true - temp_errors = * - timeout = 5m - timeout_defer = true - message_prefix = - message_suffix = - headers_remove = X-Spam-Flag:X-Spam-Status:X-Spam-Level diff --git a/conf.d/transport/30_exim4-config_address_file b/conf.d/transport/30_exim4-config_address_file index 67e089c..82b55e2 100644 --- a/conf.d/transport/30_exim4-config_address_file +++ b/conf.d/transport/30_exim4-config_address_file @@ -2,11 +2,9 @@ # This transport is used for handling deliveries directly to files that are # generated by aliasing or forwarding. # -# hcoop-change: Add bogus group line to make sure get-token gets executed address_file: debug_print = "T: address_file for $local_part@$domain" driver = appendfile - group = mail${run{/etc/exim4/get-token ${local_part}}{}} delivery_date_add envelope_to_add return_path_add diff --git a/conf.d/transport/30_exim4-config_address_pipe b/conf.d/transport/30_exim4-config_address_pipe index 1c19408..c5f1828 100644 --- a/conf.d/transport/30_exim4-config_address_pipe +++ b/conf.d/transport/30_exim4-config_address_pipe @@ -3,12 +3,8 @@ # .forward files. If the commands fails and produces any output on standard # output or standard error streams, the output is returned to the sender # of the message as a delivery error. -# -# hcoop-change: Set a nonsensical environment variable in order that a -# the token-acquiring command may be run address_pipe: debug_print = "T: address_pipe for $local_part@$domain" driver = pipe - environment = AFS_IS=${run{/etc/exim4/get-token ${local_part}}{}}enabled return_fail_output diff --git a/conf.d/transport/30_exim4-config_maildir_home b/conf.d/transport/30_exim4-config_maildir_home index 594cc0e..a872acc 100644 --- a/conf.d/transport/30_exim4-config_maildir_home +++ b/conf.d/transport/30_exim4-config_maildir_home @@ -5,15 +5,11 @@ # Use this instead of mail_spool if you want to to deliver to Maildir in # home-directory - change the definition of LOCAL_DELIVERY # -# hcoop-change: Deliver to -# MAILDIR_HOME_MAILDIR_LOCATION/l/lo/$local_part -# -# hcoop-change: Make sure get-token gets executed maildir_home: debug_print = "T: maildir_home for $local_part@$domain" driver = appendfile .ifdef MAILDIR_HOME_MAILDIR_LOCATION - directory = MAILDIR_HOME_MAILDIR_LOCATION/${length_1:$local_part}/${length_2:$local_part}/${local_part}${run{/etc/exim4/get-token ${local_part}}{}} + directory = MAILDIR_HOME_MAILDIR_LOCATION .else directory = $home/Maildir .endif @@ -42,8 +38,4 @@ maildir_home: # $home is not accessible, this chdir fails and prevents delivery. # If you are in a setup where home directories might not be # accessible, uncomment the current_directory line below. - # - # hcoop-change: uncommented this - current_directory = / - # hcoop-change: Try 20 times rather than 10 before deferring. - maildir_retries = 20 + # current_directory = / diff --git a/conf.d/transport/30_exim4-config_maildrop_pipe b/conf.d/transport/30_exim4-config_maildrop_pipe index edfc8ba..0ba27bc 100644 --- a/conf.d/transport/30_exim4-config_maildrop_pipe +++ b/conf.d/transport/30_exim4-config_maildrop_pipe @@ -1,11 +1,8 @@ -# hcoop-change: Set a nonsensical environment variable in order that a -# the token-acquiring command may be run maildrop_pipe: debug_print = "T: maildrop_pipe for $local_part@$domain" driver = pipe path = "/bin:/usr/bin:/usr/local/bin" - environment = AFS_IS=${run{/etc/exim4/get-token ${local_part}}{}}enabled command = "/usr/bin/maildrop" return_path_add delivery_date_add diff --git a/conf.d/transport/30_exim4-config_procmail_pipe b/conf.d/transport/30_exim4-config_procmail_pipe dissimilarity index 61% index 0da57b1..5fb03ff 100644 --- a/conf.d/transport/30_exim4-config_procmail_pipe +++ b/conf.d/transport/30_exim4-config_procmail_pipe @@ -1,14 +1,10 @@ -# hcoop-change: Set a nonsensical environment variable in order that a -# the token-acquiring command may be run - -procmail_pipe: - debug_print = "T: procmail_pipe for $local_part@$domain" - driver = pipe - path = "/bin:/usr/bin:/usr/local/bin" - environment = AFS_IS=${run{/etc/exim4/get-token ${local_part}}{}}enabled -# command = "/home/mwolson_admin/procmailtest" - command = /usr/bin/procmail ${home}/.procmail.d/procmailrc - return_path_add - delivery_date_add - envelope_to_add - + +procmail_pipe: + debug_print = "T: procmail_pipe for $local_part@$domain" + driver = pipe + path = "/bin:/usr/bin:/usr/local/bin" + command = "/usr/bin/procmail" + return_path_add + delivery_date_add + envelope_to_add + diff --git a/conf.d/transport/30_exim4-config_remote_smtp b/conf.d/transport/30_exim4-config_remote_smtp index 14ecbed..2266c92 100644 --- a/conf.d/transport/30_exim4-config_remote_smtp +++ b/conf.d/transport/30_exim4-config_remote_smtp @@ -2,8 +2,19 @@ ### transport/30_exim4-config_remote_smtp ################################# # This transport is used for delivering messages over SMTP connections. + remote_smtp: debug_print = "T: remote_smtp for $local_part@$domain" driver = smtp - # to disable TLS on outgoing connections, uncomment this - # hosts_avoid_tls = * +.ifdef REMOTE_SMTP_HOSTS_AVOID_TLS + hosts_avoid_tls = REMOTE_SMTP_HOSTS_AVOID_TLS +.endif +.ifdef REMOTE_SMTP_HEADERS_REWRITE + headers_rewrite = REMOTE_SMTP_HEADERS_REWRITE +.endif +.ifdef REMOTE_SMTP_RETURN_PATH + return_path = REMOTE_SMTP_RETURN_PATH +.endif +.ifdef REMOTE_SMTP_HELO_FROM_DNS + helo_data=REMOTE_SMTP_HELO_DATA +.endif diff --git a/conf.d/transport/30_exim4-config_remote_smtp_smarthost b/conf.d/transport/30_exim4-config_remote_smtp_smarthost index b6f1131..83edbd7 100644 --- a/conf.d/transport/30_exim4-config_remote_smtp_smarthost +++ b/conf.d/transport/30_exim4-config_remote_smtp_smarthost @@ -3,20 +3,27 @@ ################################# # This transport is used for delivering messages over SMTP connections -# to a smarthost. The local host tries to authenticate and does some -# modification in headers and return-path. +# to a smarthost. The local host tries to authenticate. # This transport is used for smarthost and satellite configurations. remote_smtp_smarthost: debug_print = "T: remote_smtp_smarthost for $local_part@$domain" driver = smtp - hosts_try_auth = ${if exists{CONFDIR/passwd.client} \ + hosts_try_auth = <; ${if exists{CONFDIR/passwd.client} \ {\ ${lookup{$host}nwildlsearch{CONFDIR/passwd.client}{$host_address}}\ }\ {} \ } - # to disable TLS on outgoing connections, uncomment this - # hosts_avoid_tls = * - DEBCONFheaders_rewriteDEBCONF - DEBCONFreturn_pathDEBCONF +.ifdef REMOTE_SMTP_SMARTHOST_HOSTS_AVOID_TLS + hosts_avoid_tls = REMOTE_SMTP_SMARTHOST_HOSTS_AVOID_TLS +.endif +.ifdef REMOTE_SMTP_HEADERS_REWRITE + headers_rewrite = REMOTE_SMTP_HEADERS_REWRITE +.endif +.ifdef REMOTE_SMTP_RETURN_PATH + return_path = REMOTE_SMTP_RETURN_PATH +.endif +.ifdef REMOTE_SMTP_HELO_FROM_DNS + helo_data=REMOTE_SMTP_HELO_DATA +.endif diff --git a/conf.d/transport/30_exim4-config_trouble_users b/conf.d/transport/30_exim4-config_trouble_users deleted file mode 100644 index 2a9fe1b..0000000 --- a/conf.d/transport/30_exim4-config_trouble_users +++ /dev/null @@ -1,14 +0,0 @@ - -# This transport is used for handling deliveries directly to files that are -# generated by aliasing or forwarding. -# -# hcoop-change: Add bogus group line to make sure get-token gets executed -trouble_users: - debug_print = "T: trouble_users for $local_part@$domain" - driver = appendfile - group = mail - file = /var/tmp/frozen/${local_part} - delivery_date_add - envelope_to_add - return_path_add - diff --git a/conf.d/transport/35_exim4-config_address_directory b/conf.d/transport/35_exim4-config_address_directory index 47d8962..6861426 100644 --- a/conf.d/transport/35_exim4-config_address_directory +++ b/conf.d/transport/35_exim4-config_address_directory @@ -2,12 +2,9 @@ # or .forward files if the path ends in "/", which causes it to be treated # as a directory name rather than a file name. -# hcoop-change: Add bogus group line to make sure get-token gets executed - address_directory: debug_print = "T: address_directory for $local_part@$domain" driver = appendfile - group = mail${run{/etc/exim4/get-token ${local_part}}{}} delivery_date_add envelope_to_add return_path_add diff --git a/conf.d/transport/40_exim4-config_virtual_delivery b/conf.d/transport/40_exim4-config_virtual_delivery deleted file mode 100644 index d18a328..0000000 --- a/conf.d/transport/40_exim4-config_virtual_delivery +++ /dev/null @@ -1,16 +0,0 @@ -# hcoop-change: This transport is used to deliver mail to virtual -# mailboxes (i.e. email accounts which have been granted to non-hcoop -# members by the owner of the domain) - -virtual_delivery: - debug_print = "T: virtual_delivery for $local_part@$domain" - driver = appendfile - user = ${extract{uid}{$address_data}} - group = nogroup - mode = 0600 - mode_fail_narrower = false - envelope_to_add - return_path_add - directory = ${extract{mail}{$address_data}}${run{/etc/exim4/get-token \ - ${extract{uid}{$address_data}}}{}} - maildir_format diff --git a/conf.d/transport/90_exim4-config_devnull b/conf.d/transport/90_exim4-config_devnull deleted file mode 100644 index e96857a..0000000 --- a/conf.d/transport/90_exim4-config_devnull +++ /dev/null @@ -1,8 +0,0 @@ -# hcoop-change: Dummy transport needed by get_token router, in case -# something goes horribly wrong with the configuration -- this should -# be impossible to call - -dev_null: - debug_print = "T: throwing away email for $local_part@$domain" - driver = appendfile - file = /dev/null diff --git a/deliver-once b/deliver-once deleted file mode 100755 index 409c51b..0000000 --- a/deliver-once +++ /dev/null @@ -1,16 +0,0 @@ -#/bin/sh -# -# Cause a single email message from stdin to be delivered, after -# pausing one second to allow the mail daemon to cope. -# -# Usage: deliver-once USER -# -# USER is the person to deliver this email message to. - -if test -n "$2" || test -z "$1"; then - echo Incorrect number of arguments - exit 1 -fi - -sleep 1 -/usr/sbin/exim4 -bm $1 diff --git a/email-addresses b/email-addresses deleted file mode 120000 index ff68378..0000000 --- a/email-addresses +++ /dev/null @@ -1 +0,0 @@ -../email-addresses \ No newline at end of file diff --git a/exim4.conf.template b/exim4.conf.template new file mode 100644 index 0000000..78c6408 --- /dev/null +++ b/exim4.conf.template @@ -0,0 +1,1996 @@ +##################################################### +### main/01_exim4-config_listmacrosdefs +##################################################### +###################################################################### +# Runtime configuration file for Exim 4 (Debian Packaging) # +###################################################################### + +###################################################################### +# /etc/exim4/exim4.conf.template is only used with the non-split +# configuration scheme. +# /etc/exim4/conf.d/main/01_exim4-config_listmacrosdefs is only used +# with the split configuration scheme. +# If you find this comment anywhere else, somebody copied it there. +# Documentation about the Debian exim4 configuration scheme can be +# found in /usr/share/doc/exim4-base/README.Debian.gz. +###################################################################### + +###################################################################### +# MAIN CONFIGURATION SETTINGS # +###################################################################### + +# Just for reference and scripts. +# On Debian systems, the main binary is installed as exim4 to avoid +# conflicts with the exim 3 packages. +exim_path = /usr/sbin/exim4 + +# Macro defining the main configuration directory. +# We do not use absolute paths. +.ifndef CONFDIR +CONFDIR = /etc/exim4 +.endif + +# debconf-driven macro definitions get inserted after this line +UPEX4CmacrosUPEX4C = 1 + +# Create domain and host lists for relay control +# '@' refers to 'the name of the local host' + +# List of domains considered local for exim. Domains not listed here +# need to be deliverable remotely. +domainlist local_domains = MAIN_LOCAL_DOMAINS + +# List of recipient domains to relay _to_. Use this list if you're - +# for example - fallback MX or mail gateway for domains. +domainlist relay_to_domains = MAIN_RELAY_TO_DOMAINS + +# List of sender networks (IP addresses) to _unconditionally_ relay +# _for_. If you intend to be SMTP AUTH server, you do not need to enter +# anything here. +hostlist relay_from_hosts = MAIN_RELAY_NETS + + +# Decide which domain to use to add to all unqualified addresses. +# If MAIN_PRIMARY_HOSTNAME_AS_QUALIFY_DOMAIN is defined, the primary +# hostname is used. If not, but MAIN_QUALIFY_DOMAIN is set, the value +# of MAIN_QUALIFY_DOMAIN is used. If both macros are not defined, +# the first line of /etc/mailname is used. +.ifndef MAIN_PRIMARY_HOSTNAME_AS_QUALIFY_DOMAIN +.ifndef MAIN_QUALIFY_DOMAIN +qualify_domain = ETC_MAILNAME +.else +qualify_domain = MAIN_QUALIFY_DOMAIN +.endif +.endif + +# listen on all all interfaces? +.ifdef MAIN_LOCAL_INTERFACES +local_interfaces = MAIN_LOCAL_INTERFACES +.endif + +.ifndef LOCAL_DELIVERY +# The default transport, set in /etc/exim4/update-exim4.conf.conf, +# defaulting to mail_spool. See CONFDIR/conf.d/transport/ for possibilities +LOCAL_DELIVERY=mail_spool +.endif + +# The gecos field in /etc/passwd holds not only the name. see passwd(5). +gecos_pattern = ^([^,:]*) +gecos_name = $1 + +# define macros to be used in acl/30_exim4-config_check_rcpt to check +# recipient local parts for strange characters. + +# This macro definition really should be in +# acl/30_exim4-config_check_rcpt but cannot be there due to +# http://www.exim.org/bugzilla/show_bug.cgi?id=101 as of exim 4.62. + +# These macros are documented in acl/30_exim4-config_check_rcpt, +# can be changed here or overridden by a locally added configuration +# file as described in README.Debian chapter 2.1.2 + +.ifndef CHECK_RCPT_LOCAL_LOCALPARTS +CHECK_RCPT_LOCAL_LOCALPARTS = ^[.] : ^.*[@%!/|`#&?] +.endif + +.ifndef CHECK_RCPT_REMOTE_LOCALPARTS +CHECK_RCPT_REMOTE_LOCALPARTS = ^[./|] : ^.*[@%!`#&?] : ^.*/\\.\\./ +.endif + +# always log tls_peerdn as we use TLS for outgoing connects by default +.ifndef MAIN_LOG_SELECTOR +MAIN_LOG_SELECTOR = +tls_peerdn +.endif +##################################################### +### end main/01_exim4-config_listmacrosdefs +##################################################### +##################################################### +### main/02_exim4-config_options +##################################################### + +### main/02_exim4-config_options +################################# + + +# Defines the access control list that is run when an +# SMTP MAIL command is received. +# +.ifndef MAIN_ACL_CHECK_MAIL +MAIN_ACL_CHECK_MAIL = acl_check_mail +.endif +acl_smtp_mail = MAIN_ACL_CHECK_MAIL + + +# Defines the access control list that is run when an +# SMTP RCPT command is received. +# +.ifndef MAIN_ACL_CHECK_RCPT +MAIN_ACL_CHECK_RCPT = acl_check_rcpt +.endif +acl_smtp_rcpt = MAIN_ACL_CHECK_RCPT + + +# Defines the access control list that is run when an +# SMTP DATA command is received. +# +.ifndef MAIN_ACL_CHECK_DATA +MAIN_ACL_CHECK_DATA = acl_check_data +.endif +acl_smtp_data = MAIN_ACL_CHECK_DATA + + +# Message size limit. The default (used when MESSAGE_SIZE_LIMIT +# is unset) is 50 MB +.ifdef MESSAGE_SIZE_LIMIT +message_size_limit = MESSAGE_SIZE_LIMIT +.endif + + +# If you are running exim4-daemon-heavy or a custom version of Exim that +# was compiled with the content-scanning extension, you can cause incoming +# messages to be automatically scanned for viruses. You have to modify the +# configuration in two places to set this up. The first of them is here, +# where you define the interface to your scanner. This example is typical +# for ClamAV; see the manual for details of what to set for other virus +# scanners. The second modification is in the acl_check_data access +# control list. + +# av_scanner = clamd:/tmp/clamd + + +# For spam scanning, there is a similar option that defines the interface to +# SpamAssassin. You do not need to set this if you are using the default, which +# is shown in this commented example. As for virus scanning, you must also +# modify the acl_check_data access control list to enable spam scanning. + +# spamd_address = 127.0.0.1 783 + +# Domain used to qualify unqualified recipient addresses +# If this option is not set, the qualify_domain value is used. +# qualify_recipient = + + +# Allow Exim to recognize addresses of the form "user@[10.11.12.13]", +# where the domain part is a "domain literal" (an IP address) instead +# of a named domain. The RFCs require this facility, but it is disabled +# in the default config since it is seldomly used and frequently abused. +# Domain literal support also needs a special router, which is automatically +# enabled if you use the enable macro MAIN_ALLOW_DOMAIN_LITERALS. +# Additionally, you might want to make your local IP addresses (or @[]) +# local domains. +.ifdef MAIN_ALLOW_DOMAIN_LITERALS +allow_domain_literals +.endif + + +# Do a reverse DNS lookup on all incoming IP calls, in order to get the +# true host name. If you feel this is too expensive, the networks for +# which a lookup is done can be listed here. +.ifndef DC_minimaldns +.ifndef MAIN_HOST_LOOKUP +MAIN_HOST_LOOKUP = * +.endif +host_lookup = MAIN_HOST_LOOKUP +.endif + + +# In a minimaldns setup, update-exim4.conf guesses the hostname and +# dumps it here to avoid DNS lookups being done at Exim run time. +.ifdef MAIN_HARDCODE_PRIMARY_HOSTNAME +primary_hostname = MAIN_HARDCODE_PRIMARY_HOSTNAME +.endif + +# The settings below, which are actually the same as the defaults in the +# code, cause Exim to make RFC 1413 (ident) callbacks for all incoming SMTP +# calls. You can limit the hosts to which these calls are made, and/or change +# the timeout that is used. If you set the timeout to zero, all RFC 1413 calls +# are disabled. RFC 1413 calls are cheap and can provide useful information +# for tracing problem messages, but some hosts and firewalls are +# misconfigured to drop the requests instead of either answering or +# rejecting them. This can result in a timeout instead of an immediate refused +# connection, leading to delays on starting up SMTP sessions. (The default was +# reduced from 30s to 5s for release 4.61.) +# rfc1413_hosts = * +# rfc1413_query_timeout = 5s + +# When using an external relay tester (such as rt.njabl.org and/or the +# currently defunct relay-test.mail-abuse.org, the test may be aborted +# since exim complains about "too many nonmail commands". If you want +# the test to complete, add the host from where "your" relay tester +# connects from to the MAIN_SMTP_ACCEPT_MAX_NOMAIL_HOSTS macro. +# Please note that a non-empty setting may cause extra DNS lookups to +# happen, which is the reason why this option is commented out in the +# default settings. +# MAIN_SMTP_ACCEPT_MAX_NOMAIL_HOSTS = !rt.njabl.org +.ifdef MAIN_SMTP_ACCEPT_MAX_NOMAIL_HOSTS +smtp_accept_max_nonmail_hosts = MAIN_SMTP_ACCEPT_MAX_NOMAIL_HOSTS +.endif + +# By default, exim forces a Sender: header containing the local +# account name at the local host name in all locally submitted messages +# that don't have the local account name at the local host name in the +# From: header, deletes any Sender: header present in the submitted +# message and forces the envelope sender of all locally submitted +# messages to the local account name at the local host name. +# The following settings allow local users to specify their own envelope sender +# in a locally submitted message. Sender: headers existing in a locally +# submitted message are not removed, and no automatic Sender: headers +# are added. These settings are fine for most hosts. +# If you run exim on a classical multi-user systems where all users +# have local mailboxes that can be reached via SMTP from the Internet +# with the local FQDN as the domain part of the address, you might want +# to disable the following three lines for traceability reasons. +.ifndef MAIN_FORCE_SENDER +local_from_check = false +local_sender_retain = true +untrusted_set_sender = * +.endif + + +# By default, Exim expects all envelope addresses to be fully qualified, that +# is, they must contain both a local part and a domain. Configure exim +# to accept unqualified addresses from certain hosts. When this is done, +# unqualified addresses are qualified using the settings of qualify_domain +# and/or qualify_recipient (see above). +# sender_unqualified_hosts = +# recipient_unqualified_hosts = + + +# Configure Exim to support the "percent hack" for certain domains. +# The "percent hack" is the feature by which mail addressed to x%y@z +# (where z is one of the domains listed) is locally rerouted to x@y +# and sent on. If z is not one of the "percent hack" domains, x%y is +# treated as an ordinary local part. The percent hack is rarely needed +# nowadays but frequently abused. You should not enable it unless you +# are sure that you really need it. +# percent_hack_domains = + + +# Bounce handling +.ifndef MAIN_IGNORE_BOUNCE_ERRORS_AFTER +MAIN_IGNORE_BOUNCE_ERRORS_AFTER = 2d +.endif +ignore_bounce_errors_after = MAIN_IGNORE_BOUNCE_ERRORS_AFTER + +.ifndef MAIN_TIMEOUT_FROZEN_AFTER +MAIN_TIMEOUT_FROZEN_AFTER = 7d +.endif +timeout_frozen_after = MAIN_TIMEOUT_FROZEN_AFTER + +.ifndef MAIN_FREEZE_TELL +MAIN_FREEZE_TELL = postmaster +.endif +freeze_tell = MAIN_FREEZE_TELL + + +# Define spool directory +.ifndef SPOOLDIR +SPOOLDIR = /var/spool/exim4 +.endif +spool_directory = SPOOLDIR + + +# trusted users can set envelope-from to arbitrary values +.ifndef MAIN_TRUSTED_USERS +MAIN_TRUSTED_USERS = uucp +.endif +trusted_users = MAIN_TRUSTED_USERS +.ifdef MAIN_TRUSTED_GROUPS +trusted_groups = MAIN_TRUSTED_GROUPS +.endif + + +# users in admin group can do many other things +# admin_groups = + + +# SMTP Banner. The example includes the Debian version in the SMTP dialog +# MAIN_SMTP_BANNER = "${primary_hostname} ESMTP Exim ${version_number} (Debian package MAIN_PACKAGE_VERSION) ${tod_full}" +# smtp_banner = $smtp_active_hostname ESMTP Exim $version_number $tod_full +##################################################### +### end main/02_exim4-config_options +##################################################### +##################################################### +### main/03_exim4-config_tlsoptions +##################################################### + +### main/03_exim4-config_tlsoptions +################################# + +# TLS/SSL configuration for exim as an SMTP server. +# See /usr/share/doc/exim4-base/README.Debian.gz for explanations. + +.ifdef MAIN_TLS_ENABLE +# Defines what hosts to 'advertise' STARTTLS functionality to. The +# default, *, will advertise to all hosts that connect with EHLO. +.ifndef MAIN_TLS_ADVERTISE_HOSTS +MAIN_TLS_ADVERTISE_HOSTS = * +.endif +tls_advertise_hosts = MAIN_TLS_ADVERTISE_HOSTS + + +# Full paths to Certificate and Private Key. The Private Key file +# must be kept 'secret' and should be owned by root.Debian-exim mode +# 640 (-rw-r-----). exim-gencert takes care of these prerequisites. +# Normally, exim4 looks for certificate and key in different files: +# MAIN_TLS_CERTIFICATE - path to certificate file, +# CONFDIR/exim.crt if unset +# MAIN_TLS_PRIVATEKEY - path to private key file +# CONFDIR/exim.key if unset +# You can also configure exim to look for certificate and key in the +# same file, set MAIN_TLS_CERTKEY to that file to enable. This takes +# precedence over all other settings regarding certificate and key file. +.ifdef MAIN_TLS_CERTKEY +tls_certificate = MAIN_TLS_CERTKEY +.else +.ifndef MAIN_TLS_CERTIFICATE +MAIN_TLS_CERTIFICATE = CONFDIR/exim.crt +.endif +tls_certificate = MAIN_TLS_CERTIFICATE + +.ifndef MAIN_TLS_PRIVATEKEY +MAIN_TLS_PRIVATEKEY = CONFDIR/exim.key +.endif +tls_privatekey = MAIN_TLS_PRIVATEKEY +.endif + +# Pointer to the CA Certificates against which client certificates are +# checked. This is controlled by the `tls_verify_hosts' and +# `tls_try_verify_hosts' lists below. +# If you want to check server certificates, you need to add an +# tls_verify_certificates statement to the smtp transport. +# /etc/ssl/certs/ca-certificates.crt is generated by +# the "ca-certificates" package's update-ca-certificates(8) command. +.ifndef MAIN_TLS_VERIFY_CERTIFICATES +MAIN_TLS_VERIFY_CERTIFICATES = ${if exists{/etc/ssl/certs/ca-certificates.crt}\ + {/etc/ssl/certs/ca-certificates.crt}\ + {/dev/null}} +.endif +tls_verify_certificates = MAIN_TLS_VERIFY_CERTIFICATES + + +# A list of hosts which are constrained by `tls_verify_certificates'. A host +# that matches `tls_verify_host' must present a certificate that is +# verifyable through `tls_verify_certificates' in order to be accepted as an +# SMTP client. If it does not, the connection is aborted. +.ifdef MAIN_TLS_VERIFY_HOSTS +tls_verify_hosts = MAIN_TLS_VERIFY_HOSTS +.endif + +# A weaker form of checking: if a client matches `tls_try_verify_hosts' (but +# not `tls_verify_hosts'), request a certificate and check it against +# `tls_verify_certificates' but do not abort the connection if there is no +# certificate or if the certificate presented does not match. (This +# condition can be tested for in ACLs through `verify = certificate') +# By default, this check is done for all hosts. It is known that some +# clients (including incredimail's version downloadable in February +# 2008) choke on this. To disable, set MAIN_TLS_TRY_VERIFY_HOSTS to an +# empty value. +.ifndef MAIN_TLS_TRY_VERIFY_HOSTS +MAIN_TLS_TRY_VERIFY_HOSTS = * +.endif +tls_try_verify_hosts = MAIN_TLS_TRY_VERIFY_HOSTS + +.endif +##################################################### +### end main/03_exim4-config_tlsoptions +##################################################### +##################################################### +### main/90_exim4-config_log_selector +##################################################### + +### main/90_exim4-config_log_selector +################################# + +# uncomment this for debugging +# MAIN_LOG_SELECTOR == MAIN_LOG_SELECTOR +all -subject -arguments + +.ifdef MAIN_LOG_SELECTOR +log_selector = MAIN_LOG_SELECTOR +.endif +##################################################### +### end main/90_exim4-config_log_selector +##################################################### +##################################################### +### acl/00_exim4-config_header +##################################################### + +###################################################################### +# ACL CONFIGURATION # +# Specifies access control lists for incoming SMTP mail # +###################################################################### +begin acl + + +##################################################### +### end acl/00_exim4-config_header +##################################################### +##################################################### +### acl/20_exim4-config_local_deny_exceptions +##################################################### + +### acl/20_exim4-config_local_deny_exceptions +################################# + +# This is used to determine whitelisted senders and hosts. +# It checks for CONFDIR/host_local_deny_exceptions and +# CONFDIR/sender_local_deny_exceptions. +# +# It is meant to be used from some other acl entry. +# +# See exim4-config_files(5) for details. +# +# If the files do not exist, the white list never matches, which is +# the desired behaviour. +# +# The old file names CONFDIR/local_host_whitelist and +# CONFDIR/local_sender_whitelist will continue to be honored for a +# transition period. Their use is deprecated. + +acl_local_deny_exceptions: + accept + hosts = ${if exists{CONFDIR/host_local_deny_exceptions}\ + {CONFDIR/host_local_deny_exceptions}\ + {}} + accept + senders = ${if exists{CONFDIR/sender_local_deny_exceptions}\ + {CONFDIR/sender_local_deny_exceptions}\ + {}} + accept + hosts = ${if exists{CONFDIR/local_host_whitelist}\ + {CONFDIR/local_host_whitelist}\ + {}} + accept + senders = ${if exists{CONFDIR/local_sender_whitelist}\ + {CONFDIR/local_sender_whitelist}\ + {}} + + # This hook allows you to hook in your own ACLs without having to + # modify this file. If you do it like we suggest, you'll end up with + # a small performance penalty since there is an additional file being + # accessed. This doesn't happen if you leave the macro unset. + .ifdef LOCAL_DENY_EXCEPTIONS_LOCAL_ACL_FILE + .include LOCAL_DENY_EXCEPTIONS_LOCAL_ACL_FILE + .endif + + # this is still supported for a transition period and is deprecated. + .ifdef WHITELIST_LOCAL_DENY_LOCAL_ACL_FILE + .include WHITELIST_LOCAL_DENY_LOCAL_ACL_FILE + .endif +##################################################### +### end acl/20_exim4-config_local_deny_exceptions +##################################################### +##################################################### +### acl/30_exim4-config_check_mail +##################################################### + +### acl/30_exim4-config_check_mail +################################# + +# This access control list is used for every MAIL command in an incoming +# SMTP message. The tests are run in order until the address is either +# accepted or denied. +# +acl_check_mail: + .ifdef CHECK_MAIL_HELO_ISSUED + deny + message = no HELO given before MAIL command + condition = ${if def:sender_helo_name {no}{yes}} + .endif + + accept +##################################################### +### end acl/30_exim4-config_check_mail +##################################################### +##################################################### +### acl/30_exim4-config_check_rcpt +##################################################### + +### acl/30_exim4-config_check_rcpt +################################# + +# This access control list is used for every RCPT command in an incoming +# SMTP message. The tests are run in order until the address is either +# accepted or denied. +# +acl_check_rcpt: + + # Accept if the source is local SMTP (i.e. not over TCP/IP). We do this by + # testing for an empty sending host field. + accept + hosts = : + + + # The following section of the ACL is concerned with local parts that contain + # certain non-alphanumeric characters. Dots in unusual places are + # handled by this ACL as well. + # + # Non-alphanumeric characters other than dots are rarely found in genuine + # local parts, but are often tried by people looking to circumvent + # relaying restrictions. Therefore, although they are valid in local + # parts, these rules disallow certain non-alphanumeric characters, as + # a precaution. + # + # Empty components (two dots in a row) are not valid in RFC 2822, but Exim + # allows them because they have been encountered. (Consider local parts + # constructed as "firstinitial.secondinitial.familyname" when applied to + # a name without a second initial.) However, a local part starting + # with a dot or containing /../ can cause trouble if it is used as part of a + # file name (e.g. for a mailing list). This is also true for local parts that + # contain slashes. A pipe symbol can also be troublesome if the local part is + # incorporated unthinkingly into a shell command line. + # + # These ACL components will block recipient addresses that are valid + # from an RFC2822 point of view. We chose to have them blocked by + # default for security reasons. + # + # If you feel that your site should have less strict recipient + # checking, please feel free to change the default values of the macros + # defined in main/01_exim4-config_listmacrosdefs or override them from a + # local configuration file. + # + # Two different rules are used. The first one has a quite strict + # default, and is applied to messages that are addressed to one of the + # local domains handled by this host. + + # The default value of CHECK_RCPT_LOCAL_LOCALPARTS is defined in + # main/01_exim4-config_listmacrosdefs: + # CHECK_RCPT_LOCAL_LOCALPARTS = ^[.] : ^.*[@%!/|`#&?] + # This blocks local parts that begin with a dot or contain a quite + # broad range of non-alphanumeric characters. + .ifdef CHECK_RCPT_LOCAL_LOCALPARTS + deny + domains = +local_domains + local_parts = CHECK_RCPT_LOCAL_LOCALPARTS + message = restricted characters in address + .endif + + + # The second rule applies to all other domains, and its default is + # considerably less strict. + + # The default value of CHECK_RCPT_REMOTE_LOCALPARTS is defined in + # main/01_exim4-config_listmacrosdefs: + # CHECK_RCPT_REMOTE_LOCALPARTS = ^[./|] : ^.*[@%!`#&?] : ^.*/\\.\\./ + + # It allows local users to send outgoing messages to sites + # that use slashes and vertical bars in their local parts. It blocks + # local parts that begin with a dot, slash, or vertical bar, but allows + # these characters within the local part. However, the sequence /../ is + # barred. The use of some other non-alphanumeric characters is blocked. + # Single quotes might probably be dangerous as well, but they're + # allowed by the default regexps to avoid rejecting mails to Ireland. + # The motivation here is to prevent local users (or local users' malware) + # from mounting certain kinds of attack on remote sites. + .ifdef CHECK_RCPT_REMOTE_LOCALPARTS + deny + domains = !+local_domains + local_parts = CHECK_RCPT_REMOTE_LOCALPARTS + message = restricted characters in address + .endif + + + # Accept mail to postmaster in any local domain, regardless of the source, + # and without verifying the sender. + # + accept + .ifndef CHECK_RCPT_POSTMASTER + local_parts = postmaster + .else + local_parts = CHECK_RCPT_POSTMASTER + .endif + domains = +local_domains : +relay_to_domains + + + # Deny unless the sender address can be verified. + # + # This is disabled by default so that DNSless systems don't break. If + # your system can do DNS lookups without delay or cost, you might want + # to enable this feature. + # + # This feature does not work in smarthost and satellite setups as + # with these setups all domains pass verification. See spec.txt chapter + # 39.31 with the added information that a smarthost/satellite setup + # routes all non-local e-mail to the smarthost. + .ifdef CHECK_RCPT_VERIFY_SENDER + deny + message = Sender verification failed + !acl = acl_local_deny_exceptions + !verify = sender + .endif + + # Verify senders listed in local_sender_callout with a callout. + # + # In smarthost and satellite setups, this causes the callout to be + # done to the smarthost. Verification will thus only be reliable if the + # smarthost does reject illegal addresses in the SMTP dialog. + deny + !acl = acl_local_deny_exceptions + senders = ${if exists{CONFDIR/local_sender_callout}\ + {CONFDIR/local_sender_callout}\ + {}} + !verify = sender/callout + + + # Accept if the message comes from one of the hosts for which we are an + # outgoing relay. It is assumed that such hosts are most likely to be MUAs, + # so we set control=submission to make Exim treat the message as a + # submission. It will fix up various errors in the message, for example, the + # lack of a Date: header line. If you are actually relaying out out from + # MTAs, you may want to disable this. If you are handling both relaying from + # MTAs and submissions from MUAs you should probably split them into two + # lists, and handle them differently. + + # Recipient verification is omitted here, because in many cases the clients + # are dumb MUAs that don't cope well with SMTP error responses. If you are + # actually relaying out from MTAs, you should probably add recipient + # verification here. + + # Note that, by putting this test before any DNS black list checks, you will + # always accept from these hosts, even if they end up on a black list. The + # assumption is that they are your friends, and if they get onto black + # list, it is a mistake. + accept + hosts = +relay_from_hosts + control = submission/sender_retain + + + # Accept if the message arrived over an authenticated connection, from + # any host. Again, these messages are usually from MUAs, so recipient + # verification is omitted, and submission mode is set. And again, we do this + # check before any black list tests. + accept + authenticated = * + control = submission/sender_retain + + + # Insist that any other recipient address that we accept is either in one of + # our local domains, or is in a domain for which we explicitly allow + # relaying. Any other domain is rejected as being unacceptable for relaying. + require + message = relay not permitted + domains = +local_domains : +relay_to_domains + + + # We also require all accepted addresses to be verifiable. This check will + # do local part verification for local domains, but only check the domain + # for remote domains. + require + verify = recipient + + + # Verify recipients listed in local_rcpt_callout with a callout. + # This is especially handy for forwarding MX hosts (secondary MX or + # mail hubs) of domains that receive a lot of spam to non-existent + # addresses. The only way to check local parts for remote relay + # domains is to use a callout (add /callout), but please read the + # documentation about callouts before doing this. + deny + !acl = acl_local_deny_exceptions + recipients = ${if exists{CONFDIR/local_rcpt_callout}\ + {CONFDIR/local_rcpt_callout}\ + {}} + !verify = recipient/callout + + + # CONFDIR/local_sender_blacklist holds a list of envelope senders that + # should have their access denied to the local host. Incoming messages + # with one of these senders are rejected at RCPT time. + # + # The explicit white lists are honored as well as negative items in + # the black list. See exim4-config_files(5) for details. + deny + message = sender envelope address $sender_address is locally blacklisted here. If you think this is wrong, get in touch with postmaster + !acl = acl_local_deny_exceptions + senders = ${if exists{CONFDIR/local_sender_blacklist}\ + {CONFDIR/local_sender_blacklist}\ + {}} + + + # deny bad sites (IP address) + # CONFDIR/local_host_blacklist holds a list of host names, IP addresses + # and networks (CIDR notation) that should have their access denied to + # The local host. Messages coming in from a listed host will have all + # RCPT statements rejected. + # + # The explicit white lists are honored as well as negative items in + # the black list. See exim4-config_files(5) for details. + deny + message = sender IP address $sender_host_address is locally blacklisted here. If you think this is wrong, get in touch with postmaster + !acl = acl_local_deny_exceptions + hosts = ${if exists{CONFDIR/local_host_blacklist}\ + {CONFDIR/local_host_blacklist}\ + {}} + + + # Warn if the sender host does not have valid reverse DNS. + # + # If your system can do DNS lookups without delay or cost, you might want + # to enable this. + # If sender_host_address is defined, it's a remote call. If + # sender_host_name is not defined, then reverse lookup failed. Use + # this instead of !verify = reverse_host_lookup to catch deferrals + # as well as outright failures. + .ifdef CHECK_RCPT_REVERSE_DNS + warn + message = X-Host-Lookup-Failed: Reverse DNS lookup failed for $sender_host_address (${if eq{$host_lookup_failed}{1}{failed}{deferred}}) + condition = ${if and{{def:sender_host_address}{!def:sender_host_name}}\ + {yes}{no}} + .endif + + + # Use spfquery to perform a pair of SPF checks (for details, see + # http://www.openspf.org/) + # + # This is quite costly in terms of DNS lookups (~6 lookups per mail). Do not + # enable if that's an issue. Also note that if you enable this, you must + # install "libmail-spf-query-perl" which provides the spfquery command. + # Missing libmail-spf-query-perl will trigger the "Unexpected error in + # SPF check" warning. + .ifdef CHECK_RCPT_SPF + deny + message = [SPF] $sender_host_address is not allowed to send mail from ${if def:sender_address_domain {$sender_address_domain}{$sender_helo_name}}. \ + Please see http://www.openspf.org/Why?scope=${if def:sender_address_domain {mfrom}{helo}};identity=${if def:sender_address_domain {$sender_address}{$sender_helo_name}};ip=$sender_host_address + log_message = SPF check failed. + !acl = acl_local_deny_exceptions + condition = ${run{/usr/bin/spfquery --ip \"$sender_host_address\" --mail-from \"$sender_address\" --helo \"$sender_helo_name\"}\ + {no}{${if eq {$runrc}{1}{yes}{no}}}} + + defer + message = Temporary DNS error while checking SPF record. Try again later. + condition = ${if eq {$runrc}{5}{yes}{no}} + + warn + message = Received-SPF: ${if eq {$runrc}{0}{pass}{${if eq {$runrc}{2}{softfail}\ + {${if eq {$runrc}{3}{neutral}{${if eq {$runrc}{4}{unknown}{${if eq {$runrc}{6}{none}{error}}}}}}}}}} + condition = ${if <={$runrc}{6}{yes}{no}} + + warn + log_message = Unexpected error in SPF check. + condition = ${if >{$runrc}{6}{yes}{no}} + + # Support for best-guess (see http://www.openspf.org/developers-guide.html) + warn + message = X-SPF-Guess: ${run{/usr/bin/spfquery --ip \"$sender_host_address\" --mail-from \"$sender_address\" \ --helo \"$sender_helo_name\" --guess true}\ + {pass}{${if eq {$runrc}{2}{softfail}{${if eq {$runrc}{3}{neutral}{${if eq {$runrc}{4}{unknown}\ + {${if eq {$runrc}{6}{none}{error}}}}}}}}}} + condition = ${if <={$runrc}{6}{yes}{no}} + + defer + message = Temporary DNS error while checking SPF record. Try again later. + condition = ${if eq {$runrc}{5}{yes}{no}} + .endif + + + # Check against classic DNS "black" lists (DNSBLs) which list + # sender IP addresses + .ifdef CHECK_RCPT_IP_DNSBLS + warn + message = X-Warning: $sender_host_address is listed at $dnslist_domain ($dnslist_value: $dnslist_text) + log_message = $sender_host_address is listed at $dnslist_domain ($dnslist_value: $dnslist_text) + dnslists = CHECK_RCPT_IP_DNSBLS + .endif + + + # Check against DNSBLs which list sender domains, with an option to locally + # whitelist certain domains that might be blacklisted. + # + # Note: If you define CHECK_RCPT_DOMAIN_DNSBLS, you must append + # "/$sender_address_domain" after each domain. For example: + # CHECK_RCPT_DOMAIN_DNSBLS = rhsbl.foo.org/$sender_address_domain \ + # : rhsbl.bar.org/$sender_address_domain + .ifdef CHECK_RCPT_DOMAIN_DNSBLS + warn + message = X-Warning: $sender_address_domain is listed at $dnslist_domain ($dnslist_value: $dnslist_text) + log_message = $sender_address_domain is listed at $dnslist_domain ($dnslist_value: $dnslist_text) + !senders = ${if exists{CONFDIR/local_domain_dnsbl_whitelist}\ + {CONFDIR/local_domain_dnsbl_whitelist}\ + {}} + dnslists = CHECK_RCPT_DOMAIN_DNSBLS + .endif + + + # This hook allows you to hook in your own ACLs without having to + # modify this file. If you do it like we suggest, you'll end up with + # a small performance penalty since there is an additional file being + # accessed. This doesn't happen if you leave the macro unset. + .ifdef CHECK_RCPT_LOCAL_ACL_FILE + .include CHECK_RCPT_LOCAL_ACL_FILE + .endif + + + ############################################################################# + # This check is commented out because it is recognized that not every + # sysadmin will want to do it. If you enable it, the check performs + # Client SMTP Authorization (csa) checks on the sending host. These checks + # do DNS lookups for SRV records. The CSA proposal is currently (May 2005) + # an Internet draft. You can, of course, add additional conditions to this + # ACL statement to restrict the CSA checks to certain hosts only. + # + # require verify = csa + ############################################################################# + + + # Accept if the address is in a domain for which we are an incoming relay, + # but again, only if the recipient can be verified. + + accept + domains = +relay_to_domains + endpass + verify = recipient + + + # At this point, the address has passed all the checks that have been + # configured, so we accept it unconditionally. + + accept +##################################################### +### end acl/30_exim4-config_check_rcpt +##################################################### +##################################################### +### acl/40_exim4-config_check_data +##################################################### + +### acl/40_exim4-config_check_data +################################# + +# This ACL is used after the contents of a message have been received. This +# is the ACL in which you can test a message's headers or body, and in +# particular, this is where you can invoke external virus or spam scanners. + +acl_check_data: + + # Deny unless the address list headers are syntactically correct. + # + # If you enable this, you might reject legitimate mail. + .ifdef CHECK_DATA_VERIFY_HEADER_SYNTAX + deny + message = Message headers fail syntax check + !acl = acl_local_deny_exceptions + !verify = header_syntax + .endif + + + # require that there is a verifiable sender address in at least + # one of the "Sender:", "Reply-To:", or "From:" header lines. + .ifdef CHECK_DATA_VERIFY_HEADER_SENDER + deny + message = No verifiable sender address in message headers + !acl = acl_local_deny_exceptions + !verify = header_sender + .endif + + + # Deny if the message contains malware. Before enabling this check, you + # must install a virus scanner and set the av_scanner option in the + # main configuration. + # + # exim4-daemon-heavy must be used for this section to work. + # + # deny + # malware = * + # message = This message was detected as possible malware ($malware_name). + + + # Add headers to a message if it is judged to be spam. Before enabling this, + # you must install SpamAssassin. You also need to set the spamd_address + # option in the main configuration. + # + # exim4-daemon-heavy must be used for this section to work. + # + # Please note that this is only suiteable as an example. There are + # multiple issues with this configuration method. For example, if you go + # this way, you'll give your spamassassin daemon write access to the + # entire exim spool which might be a security issue in case of a + # spamassassin exploit. + # + # See the exim docs and the exim wiki for more suitable examples. + # + # warn + # spam = Debian-exim:true + # message = X-Spam_score: $spam_score\n\ + # X-Spam_score_int: $spam_score_int\n\ + # X-Spam_bar: $spam_bar\n\ + # X-Spam_report: $spam_report + + + # This hook allows you to hook in your own ACLs without having to + # modify this file. If you do it like we suggest, you'll end up with + # a small performance penalty since there is an additional file being + # accessed. This doesn't happen if you leave the macro unset. + .ifdef CHECK_DATA_LOCAL_ACL_FILE + .include CHECK_DATA_LOCAL_ACL_FILE + .endif + + + # accept otherwise + accept +##################################################### +### end acl/40_exim4-config_check_data +##################################################### +##################################################### +### router/00_exim4-config_header +##################################################### + +###################################################################### +# ROUTERS CONFIGURATION # +# Specifies how addresses are handled # +###################################################################### +# THE ORDER IN WHICH THE ROUTERS ARE DEFINED IS IMPORTANT! # +# An address is passed to each router in turn until it is accepted. # +###################################################################### + +begin routers + +##################################################### +### end router/00_exim4-config_header +##################################################### +##################################################### +### router/100_exim4-config_domain_literal +##################################################### + +### router/100_exim4-config_domain_literal +################################# + +# This router handles e-mail addresses in "domain literal" form like +# . The RFCs require this facility, but it is disabled +# in the default config since it is seldomly used and frequently abused. +# Domain literal support also needs to be enabled in the main config, +# which is automatically done if you use the enable macro +# MAIN_ALLOW_DOMAIN_LITERALS. + +.ifdef MAIN_ALLOW_DOMAIN_LITERALS +domain_literal: + debug_print = "R: domain_literal for $local_part@$domain" + driver = ipliteral + domains = ! +local_domains + transport = remote_smtp +.endif +##################################################### +### end router/100_exim4-config_domain_literal +##################################################### +##################################################### +### router/150_exim4-config_hubbed_hosts +##################################################### + +# router/150_exim4-config_hubbed_hosts +################################# + +# route specific domains manually. +# +# see exim4-config_files(5) and spec.txt chapter 20.3 through 20.7 for +# more detailed documentation. + +hubbed_hosts: + debug_print = "R: hubbed_hosts for $domain" + driver = manualroute + domains = "${if exists{CONFDIR/hubbed_hosts}\ + {partial-lsearch;CONFDIR/hubbed_hosts}\ + fail}" + same_domain_copy_routing = yes + route_data = ${lookup{$domain}partial-lsearch{CONFDIR/hubbed_hosts}} + transport = remote_smtp +##################################################### +### end router/150_exim4-config_hubbed_hosts +##################################################### +##################################################### +### router/200_exim4-config_primary +##################################################### + +### router/200_exim4-config_primary +################################# +# This file holds the primary router, responsible for nonlocal mails + +.ifdef DCconfig_internet +# configtype=internet +# +# deliver mail to the recipient if recipient domain is a domain we +# relay for. We do not ignore any target hosts here since delivering to +# a site local or even a link local address might be wanted here, and if +# such an address has found its way into the MX record of such a domain, +# the local admin is probably in a place where that broken MX record +# could be fixed. + +dnslookup_relay_to_domains: + debug_print = "R: dnslookup_relay_to_domains for $local_part@$domain" + driver = dnslookup + domains = ! +local_domains : +relay_to_domains + transport = remote_smtp + same_domain_copy_routing = yes + no_more + +# deliver mail directly to the recipient. This router is only reached +# for domains that we do not relay for. Since we most probably can't +# have broken MX records pointing to site local or link local IP +# addresses fixed, we ignore target hosts pointing to these addresses. + +dnslookup: + debug_print = "R: dnslookup for $local_part@$domain" + driver = dnslookup + domains = ! +local_domains + transport = remote_smtp + same_domain_copy_routing = yes + # ignore private rfc1918 and APIPA addresses + ignore_target_hosts = 0.0.0.0 : 127.0.0.0/8 : 192.168.0.0/16 :\ + 172.16.0.0/12 : 10.0.0.0/8 : 169.254.0.0/16 :\ + 255.255.255.255 + no_more + +.endif + + +.ifdef DCconfig_local +# configtype=local +# +# Stand-alone system, so generate an error for mail to a non-local domain +nonlocal: + debug_print = "R: nonlocal for $local_part@$domain" + driver = redirect + domains = ! +local_domains + allow_fail + data = :fail: Mailing to remote domains not supported + no_more + +.endif + + +.ifdef DCconfig_smarthost DCconfig_satellite +# configtype=smarthost or configtype=satellite +# +# Send all non-local mail to a single other machine (smarthost). +# +# This means _ALL_ non-local mail goes to the smarthost. This will most +# probably not do what you want for domains that are listed in +# relay_domains. The most typical use for relay_domains is to control +# relaying for incoming e-mail on secondary MX hosts. In that case, +# it doesn't make sense to send the mail to the smarthost since the +# smarthost will probably send the message right back here, causing a +# loop. +# +# If you want to use a smarthost while being secondary MX for some +# domains, you'll need to copy the dnslookup_relay_to_domains router +# here so that mail to relay_domains is handled separately. + +smarthost: + debug_print = "R: smarthost for $local_part@$domain" + driver = manualroute + domains = ! +local_domains + transport = remote_smtp_smarthost + route_list = * DCsmarthost byname + host_find_failed = defer + same_domain_copy_routing = yes + no_more + +.endif + + +# The "no_more" above means that all later routers are for +# domains in the local_domains list, i.e. just like Exim 3 directors. +##################################################### +### end router/200_exim4-config_primary +##################################################### +##################################################### +### router/300_exim4-config_real_local +##################################################### + +### router/300_exim4-config_real_local +################################# + +# This router allows reaching a local user while avoiding local +# processing. This can be used to inform a user of a broken .forward +# file, for example. The userforward router does this. + +COND_LOCAL_SUBMITTER = "\ + ${if match_ip{$sender_host_address}{:@[]}\ + {1}{0}\ + }" + +real_local: + debug_print = "R: real_local for $local_part@$domain" + driver = accept + domains = +local_domains + condition = COND_LOCAL_SUBMITTER + local_part_prefix = real- + check_local_user + transport = LOCAL_DELIVERY + +##################################################### +### end router/300_exim4-config_real_local +##################################################### +##################################################### +### router/400_exim4-config_system_aliases +##################################################### + +### router/400_exim4-config_system_aliases +################################# + +# This router handles aliasing using a traditional /etc/aliases file. +# +##### NB You must ensure that /etc/aliases exists. It used to be the case +##### NB that every Unix had that file, because it was the Sendmail default. +##### NB These days, there are systems that don't have it. Your aliases +##### NB file should at least contain an alias for "postmaster". +# +# This router handles the local part in a case-insensitive way which +# satisfies the RFCs requirement that postmaster be reachable regardless +# of case. If you decide to handle /etc/aliases in a caseful way, you +# need to make arrangements for a caseless postmaster. +# +# Delivery to arbitrary directories, files, and piping to programs in +# /etc/aliases is disabled per default. +# If that is a problem for you, see +# /usr/share/doc/exim4-base/README.Debian.gz +# for explanation and some workarounds. + +system_aliases: + debug_print = "R: system_aliases for $local_part@$domain" + driver = redirect + domains = +local_domains + allow_fail + allow_defer + data = ${lookup{$local_part}lsearch{/etc/aliases}} + .ifdef SYSTEM_ALIASES_USER + user = SYSTEM_ALIASES_USER + .endif + .ifdef SYSTEM_ALIASES_GROUP + group = SYSTEM_ALIASES_GROUP + .endif + .ifdef SYSTEM_ALIASES_FILE_TRANSPORT + file_transport = SYSTEM_ALIASES_FILE_TRANSPORT + .endif + .ifdef SYSTEM_ALIASES_PIPE_TRANSPORT + pipe_transport = SYSTEM_ALIASES_PIPE_TRANSPORT + .endif + .ifdef SYSTEM_ALIASES_DIRECTORY_TRANSPORT + directory_transport = SYSTEM_ALIASES_DIRECTORY_TRANSPORT + .endif +##################################################### +### end router/400_exim4-config_system_aliases +##################################################### +##################################################### +### router/500_exim4-config_hubuser +##################################################### + +### router/500_exim4-config_hubuser +################################# + +.ifdef DCconfig_satellite +# This router is only used for configtype=satellite. +# It takes care to route all mail targetted to +# to the host where we read our mail +# +hub_user: + debug_print = "R: hub_user for $local_part@$domain" + driver = redirect + domains = +local_domains + data = ${local_part}@DCreadhost + check_local_user + +# Grab the redirected mail and deliver it. +# This is a duplicate of the smarthost router, needed because +# DCreadhost might end up as part of +local_domains +hub_user_smarthost: + debug_print = "R: hub_user_smarthost for $local_part@$domain" + driver = manualroute + domains = DCreadhost + transport = remote_smtp_smarthost + route_list = * DCsmarthost byname + host_find_failed = defer + same_domain_copy_routing = yes + check_local_user +.endif + + +##################################################### +### end router/500_exim4-config_hubuser +##################################################### +##################################################### +### router/600_exim4-config_userforward +##################################################### + +### router/600_exim4-config_userforward +################################# + +# This router handles forwarding using traditional .forward files in users' +# home directories. It also allows mail filtering with a forward file +# starting with the string "# Exim filter" or "# Sieve filter". +# +# The no_verify setting means that this router is skipped when Exim is +# verifying addresses. Similarly, no_expn means that this router is skipped if +# Exim is processing an EXPN command. +# +# The check_ancestor option means that if the forward file generates an +# address that is an ancestor of the current one, the current one gets +# passed on instead. This covers the case where A is aliased to B and B +# has a .forward file pointing to A. +# +# The four transports specified at the end are those that are used when +# forwarding generates a direct delivery to a directory, or a file, or to a +# pipe, or sets up an auto-reply, respectively. +# +userforward: + debug_print = "R: userforward for $local_part@$domain" + driver = redirect + domains = +local_domains + check_local_user + file = $home/.forward + require_files = $local_part:$home/.forward + no_verify + no_expn + check_ancestor + allow_filter + forbid_smtp_code = true + directory_transport = address_directory + file_transport = address_file + pipe_transport = address_pipe + reply_transport = address_reply + skip_syntax_errors + syntax_errors_to = real-$local_part@$domain + syntax_errors_text = \ + This is an automatically generated message. An error has\n\ + been found in your .forward file. Details of the error are\n\ + reported below. While this error persists, you will receive\n\ + a copy of this message for every message that is addressed\n\ + to you. If your .forward file is a filter file, or if it is\n\ + a non-filter file containing no valid forwarding addresses,\n\ + a copy of each incoming message will be put in your normal\n\ + mailbox. If a non-filter file contains at least one valid\n\ + forwarding address, forwarding to the valid addresses will\n\ + happen, and those will be the only deliveries that occur. + +##################################################### +### end router/600_exim4-config_userforward +##################################################### +##################################################### +### router/700_exim4-config_procmail +##################################################### + +procmail: + debug_print = "R: procmail for $local_part@$domain" + driver = accept + domains = +local_domains + check_local_user + transport = procmail_pipe + # emulate OR with "if exists"-expansion + require_files = ${local_part}:\ + ${if exists{/etc/procmailrc}\ + {/etc/procmailrc}{${home}/.procmailrc}}:\ + +/usr/bin/procmail + no_verify + no_expn + +##################################################### +### end router/700_exim4-config_procmail +##################################################### +##################################################### +### router/800_exim4-config_maildrop +##################################################### + +### router/800_exim4-config_maildrop +################################# + +maildrop: + debug_print = "R: maildrop for $local_part@$domain" + driver = accept + domains = +local_domains + check_local_user + transport = maildrop_pipe + require_files = ${local_part}:${home}/.mailfilter:+/usr/bin/maildrop + no_verify + no_expn + +##################################################### +### end router/800_exim4-config_maildrop +##################################################### +##################################################### +### router/850_exim4-config_lowuid +##################################################### + +### router/850_exim4-config_lowuid +################################# + +.ifndef FIRST_USER_ACCOUNT_UID +FIRST_USER_ACCOUNT_UID = 0 +.endif + +.ifndef DEFAULT_SYSTEM_ACCOUNT_ALIAS +DEFAULT_SYSTEM_ACCOUNT_ALIAS = :fail: no mail to system accounts +.endif + +COND_SYSTEM_USER_AND_REMOTE_SUBMITTER = "\ + ${if and{{! match_ip{$sender_host_address}{:@[]}}\ + {<{$local_user_uid}{FIRST_USER_ACCOUNT_UID}}}\ + {1}{0}\ + }" + +lowuid_aliases: + debug_print = "R: lowuid_aliases for $local_part@$domain (UID $local_user_uid)" + check_local_user + driver = redirect + allow_fail + domains = +local_domains + condition = COND_SYSTEM_USER_AND_REMOTE_SUBMITTER + data = ${if exists{/etc/exim4/lowuid-aliases}\ + {${lookup{$local_part}lsearch{/etc/exim4/lowuid-aliases}\ + {$value}{DEFAULT_SYSTEM_ACCOUNT_ALIAS}}}{DEFAULT_SYSTEM_ACCOUNT_ALIAS}} +##################################################### +### end router/850_exim4-config_lowuid +##################################################### +##################################################### +### router/900_exim4-config_local_user +##################################################### + +### router/900_exim4-config_local_user +################################# + +# This router matches local user mailboxes. If the router fails, the error +# message is "Unknown user". + +local_user: + debug_print = "R: local_user for $local_part@$domain" + driver = accept + domains = +local_domains + check_local_user + local_parts = ! root + transport = LOCAL_DELIVERY + cannot_route_message = Unknown user +##################################################### +### end router/900_exim4-config_local_user +##################################################### +##################################################### +### router/mmm_mail4root +##################################################### + +### router/mmm_mail4root +################################# +# deliver mail addressed to root to /var/mail/mail as user mail:mail +# if it was not redirected in /etc/aliases or by other means +# Exim cannot deliver as root since 4.24 (FIXED_NEVER_USERS) + +mail4root: + debug_print = "R: mail4root for $local_part@$domain" + driver = redirect + domains = +local_domains + data = /var/mail/mail + file_transport = address_file + local_parts = root + user = mail + group = mail + +##################################################### +### end router/mmm_mail4root +##################################################### +##################################################### +### transport/00_exim4-config_header +##################################################### + +###################################################################### +# TRANSPORTS CONFIGURATION # +###################################################################### +# ORDER DOES NOT MATTER # +# Only one appropriate transport is called for each delivery. # +###################################################################### + +# A transport is used only when referenced from a router that successfully +# handles an address. + +begin transports + +##################################################### +### end transport/00_exim4-config_header +##################################################### +##################################################### +### transport/10_exim4-config_transport-macros +##################################################### + +### transport/10_exim4-config_transport-macros +################################# + +.ifdef HIDE_MAILNAME +REMOTE_SMTP_HEADERS_REWRITE=*@+local_domains $1@DCreadhost frs : *@ETC_MAILNAME $1@DCreadhost frs +REMOTE_SMTP_RETURN_PATH=${if match_domain{$sender_address_domain}{+local_domains}{${sender_address_local_part}@DCreadhost}{${if match_domain{$sender_address_domain}{ETC_MAILNAME}{${sender_address_local_part}@DCreadhost}fail}}} +.endif + +.ifdef REMOTE_SMTP_HELO_FROM_DNS +REMOTE_SMTP_HELO_DATA=${lookup dnsdb {ptr=$sending_ip_address}{$value}{$primary_hostname}} +.endif +##################################################### +### end transport/10_exim4-config_transport-macros +##################################################### +##################################################### +### transport/30_exim4-config_address_file +##################################################### + +# This transport is used for handling deliveries directly to files that are +# generated by aliasing or forwarding. +# +address_file: + debug_print = "T: address_file for $local_part@$domain" + driver = appendfile + delivery_date_add + envelope_to_add + return_path_add + +##################################################### +### end transport/30_exim4-config_address_file +##################################################### +##################################################### +### transport/30_exim4-config_address_pipe +##################################################### + +# This transport is used for handling pipe deliveries generated by +# .forward files. If the commands fails and produces any output on standard +# output or standard error streams, the output is returned to the sender +# of the message as a delivery error. +address_pipe: + debug_print = "T: address_pipe for $local_part@$domain" + driver = pipe + return_fail_output + +##################################################### +### end transport/30_exim4-config_address_pipe +##################################################### +##################################################### +### transport/30_exim4-config_address_reply +##################################################### + +# This transport is used for handling autoreplies generated by the filtering +# option of the userforward router. +# +address_reply: + debug_print = "T: autoreply for $local_part@$domain" + driver = autoreply + +##################################################### +### end transport/30_exim4-config_address_reply +##################################################### +##################################################### +### transport/30_exim4-config_mail_spool +##################################################### + +### transport/30_exim4-config_mail_spool + +# This transport is used for local delivery to user mailboxes in traditional +# BSD mailbox format. +# +mail_spool: + debug_print = "T: appendfile for $local_part@$domain" + driver = appendfile + file = /var/mail/$local_part + delivery_date_add + envelope_to_add + return_path_add + group = mail + mode = 0660 + mode_fail_narrower = false + +##################################################### +### end transport/30_exim4-config_mail_spool +##################################################### +##################################################### +### transport/30_exim4-config_maildir_home +##################################################### + +### transport/30_exim4-config_maildir_home +################################# + +# Use this instead of mail_spool if you want to to deliver to Maildir in +# home-directory - change the definition of LOCAL_DELIVERY +# +maildir_home: + debug_print = "T: maildir_home for $local_part@$domain" + driver = appendfile + .ifdef MAILDIR_HOME_MAILDIR_LOCATION + directory = MAILDIR_HOME_MAILDIR_LOCATION + .else + directory = $home/Maildir + .endif + .ifdef MAILDIR_HOME_CREATE_DIRECTORY + create_directory + .endif + .ifdef MAILDIR_HOME_CREATE_FILE + create_file = MAILDIR_HOME_CREATE_FILE + .endif + delivery_date_add + envelope_to_add + return_path_add + maildir_format + .ifdef MAILDIR_HOME_DIRECTORY_MODE + directory_mode = MAILDIR_HOME_DIRECTORY_MODE + .else + directory_mode = 0700 + .endif + .ifdef MAILDIR_HOME_MODE + mode = MAILDIR_HOME_MODE + .else + mode = 0600 + .endif + mode_fail_narrower = false + # This transport always chdirs to $home before trying to deliver. If + # $home is not accessible, this chdir fails and prevents delivery. + # If you are in a setup where home directories might not be + # accessible, uncomment the current_directory line below. + # current_directory = / +##################################################### +### end transport/30_exim4-config_maildir_home +##################################################### +##################################################### +### transport/30_exim4-config_maildrop_pipe +##################################################### + +maildrop_pipe: + debug_print = "T: maildrop_pipe for $local_part@$domain" + driver = pipe + path = "/bin:/usr/bin:/usr/local/bin" + command = "/usr/bin/maildrop" + return_path_add + delivery_date_add + envelope_to_add + +##################################################### +### end transport/30_exim4-config_maildrop_pipe +##################################################### +##################################################### +### transport/30_exim4-config_procmail_pipe +##################################################### + +procmail_pipe: + debug_print = "T: procmail_pipe for $local_part@$domain" + driver = pipe + path = "/bin:/usr/bin:/usr/local/bin" + command = "/usr/bin/procmail" + return_path_add + delivery_date_add + envelope_to_add + +##################################################### +### end transport/30_exim4-config_procmail_pipe +##################################################### +##################################################### +### transport/30_exim4-config_remote_smtp +##################################################### + +### transport/30_exim4-config_remote_smtp +################################# +# This transport is used for delivering messages over SMTP connections. + +remote_smtp: + debug_print = "T: remote_smtp for $local_part@$domain" + driver = smtp +.ifdef REMOTE_SMTP_HOSTS_AVOID_TLS + hosts_avoid_tls = REMOTE_SMTP_HOSTS_AVOID_TLS +.endif +.ifdef REMOTE_SMTP_HEADERS_REWRITE + headers_rewrite = REMOTE_SMTP_HEADERS_REWRITE +.endif +.ifdef REMOTE_SMTP_RETURN_PATH + return_path = REMOTE_SMTP_RETURN_PATH +.endif +.ifdef REMOTE_SMTP_HELO_FROM_DNS + helo_data=REMOTE_SMTP_HELO_DATA +.endif +##################################################### +### end transport/30_exim4-config_remote_smtp +##################################################### +##################################################### +### transport/30_exim4-config_remote_smtp_smarthost +##################################################### + +### transport/30_exim4-config_remote_smtp_smarthost +################################# + +# This transport is used for delivering messages over SMTP connections +# to a smarthost. The local host tries to authenticate. +# This transport is used for smarthost and satellite configurations. + +remote_smtp_smarthost: + debug_print = "T: remote_smtp_smarthost for $local_part@$domain" + driver = smtp + hosts_try_auth = <; ${if exists{CONFDIR/passwd.client} \ + {\ + ${lookup{$host}nwildlsearch{CONFDIR/passwd.client}{$host_address}}\ + }\ + {} \ + } +.ifdef REMOTE_SMTP_SMARTHOST_HOSTS_AVOID_TLS + hosts_avoid_tls = REMOTE_SMTP_SMARTHOST_HOSTS_AVOID_TLS +.endif +.ifdef REMOTE_SMTP_HEADERS_REWRITE + headers_rewrite = REMOTE_SMTP_HEADERS_REWRITE +.endif +.ifdef REMOTE_SMTP_RETURN_PATH + return_path = REMOTE_SMTP_RETURN_PATH +.endif +.ifdef REMOTE_SMTP_HELO_FROM_DNS + helo_data=REMOTE_SMTP_HELO_DATA +.endif +##################################################### +### end transport/30_exim4-config_remote_smtp_smarthost +##################################################### +##################################################### +### transport/35_exim4-config_address_directory +##################################################### +# This transport is used for handling file addresses generated by alias +# or .forward files if the path ends in "/", which causes it to be treated +# as a directory name rather than a file name. + +address_directory: + debug_print = "T: address_directory for $local_part@$domain" + driver = appendfile + delivery_date_add + envelope_to_add + return_path_add + check_string = "" + escape_string = "" + maildir_format + +##################################################### +### end transport/35_exim4-config_address_directory +##################################################### +##################################################### +### retry/00_exim4-config_header +##################################################### + +###################################################################### +# RETRY CONFIGURATION # +###################################################################### + +begin retry + +##################################################### +### end retry/00_exim4-config_header +##################################################### +##################################################### +### retry/30_exim4-config +##################################################### + +### retry/30_exim4-config +################################# + +# This single retry rule applies to all domains and all errors. It specifies +# retries every 15 minutes for 2 hours, then increasing retry intervals, +# starting at 1 hour and increasing each time by a factor of 1.5, up to 16 +# hours, then retries every 6 hours until 4 days have passed since the first +# failed delivery. + +# Please note that these rules only limit the frequenzy of retries, the +# effective retry-time depends on the frequenzy of queue-running, too. +# See QUEUEINTERVAL in /etc/default/exim4. + +# Address or Domain Error Retries +# ----------------- ----- ------- + +* * F,2h,15m; G,16h,1h,1.5; F,4d,6h + +##################################################### +### end retry/30_exim4-config +##################################################### +##################################################### +### rewrite/00_exim4-config_header +##################################################### + +###################################################################### +# REWRITE CONFIGURATION # +###################################################################### + +begin rewrite + +##################################################### +### end rewrite/00_exim4-config_header +##################################################### +##################################################### +### rewrite/31_exim4-config_rewriting +##################################################### + +### rewrite/31_exim4-config_rewriting +################################# + +# This rewriting rule is particularily useful for dialup users who +# don't have their own domain, but could be useful for anyone. +# It looks up the real address of all local users in a file +.ifndef NO_EAA_REWRITE_REWRITE +*@+local_domains "${lookup{${local_part}}lsearch{/etc/email-addresses}\ + {$value}fail}" Ffrs +# identical rewriting rule for /etc/mailname +*@ETC_MAILNAME "${lookup{${local_part}}lsearch{/etc/email-addresses}\ + {$value}fail}" Ffrs +.endif + + +##################################################### +### end rewrite/31_exim4-config_rewriting +##################################################### +##################################################### +### auth/00_exim4-config_header +##################################################### + +###################################################################### +# AUTHENTICATION CONFIGURATION # +###################################################################### + +begin authenticators + + +##################################################### +### end auth/00_exim4-config_header +##################################################### +##################################################### +### auth/30_exim4-config_examples +##################################################### + +### auth/30_exim4-config_examples +################################# + +# The examples below are for server side authentication, when the +# local exim is SMTP server and clients authenticate to the local exim. + +# They allow two styles of plain-text authentication against an +# CONFDIR/passwd file whose syntax is described in exim4_passwd(5). + +# Hosts that are allowed to use AUTH are defined by the +# auth_advertise_hosts option in the main configuration. The default is +# "*", which allows authentication to all hosts over all kinds of +# connections if there is at least one authenticator defined here. +# Authenticators which rely on unencrypted clear text passwords don't +# advertise on unencrypted connections by default. Thus, it might be +# wise to set up TLS to allow encrypted connections. If TLS cannot be +# used for some reason, you can set AUTH_SERVER_ALLOW_NOTLS_PASSWORDS to +# advertise unencrypted clear text password based authenticators on all +# connections. As this is severely reducing security, using TLS is +# preferred over allowing clear text password based authenticators on +# unencrypted connections. + +# PLAIN authentication has no server prompts. The client sends its +# credentials in one lump, containing an authorization ID (which we do not +# use), an authentication ID, and a password. The latter two appear as +# $auth2 and $auth3 in the configuration and should be checked against a +# valid username and password. In a real configuration you would typically +# use $auth2 as a lookup key, and compare $auth3 against the result of the +# lookup, perhaps using the crypteq{}{} condition. + +# plain_server: +# driver = plaintext +# public_name = PLAIN +# server_condition = "${if crypteq{$auth3}{${extract{1}{:}{${lookup{$auth2}lsearch{CONFDIR/passwd}{$value}{*:*}}}}}{1}{0}}" +# server_set_id = $auth2 +# server_prompts = : +# .ifndef AUTH_SERVER_ALLOW_NOTLS_PASSWORDS +# server_advertise_condition = ${if eq{$tls_cipher}{}{}{*}} +# .endif + +# LOGIN authentication has traditional prompts and responses. There is no +# authorization ID in this mechanism, so unlike PLAIN the username and +# password are $auth1 and $auth2. Apart from that you can use the same +# server_condition setting for both authenticators. + +# login_server: +# driver = plaintext +# public_name = LOGIN +# server_prompts = "Username:: : Password::" +# server_condition = "${if crypteq{$auth2}{${extract{1}{:}{${lookup{$auth1}lsearch{CONFDIR/passwd}{$value}{*:*}}}}}{1}{0}}" +# server_set_id = $auth1 +# .ifndef AUTH_SERVER_ALLOW_NOTLS_PASSWORDS +# server_advertise_condition = ${if eq{$tls_cipher}{}{}{*}} +# .endif +# +# cram_md5_server: +# driver = cram_md5 +# public_name = CRAM-MD5 +# server_secret = ${extract{2}{:}{${lookup{$auth1}lsearch{CONFDIR/passwd}{$value}fail}}} +# server_set_id = $auth1 + +# Here is an example of CRAM-MD5 authentication against PostgreSQL: +# +# psqldb_auth_server: +# driver = cram_md5 +# public_name = CRAM-MD5 +# server_secret = ${lookup pgsql{SELECT pw FROM users WHERE username = '${quote_pgsql:$auth1}'}{$value}fail} +# server_set_id = $auth1 + +# Authenticate against local passwords using sasl2-bin +# Requires exim_uid to be a member of sasl group, see README.Debian.gz +# plain_saslauthd_server: +# driver = plaintext +# public_name = PLAIN +# server_condition = ${if saslauthd{{$auth2}{$auth3}}{1}{0}} +# server_set_id = $auth2 +# server_prompts = : +# .ifndef AUTH_SERVER_ALLOW_NOTLS_PASSWORDS +# server_advertise_condition = ${if eq{$tls_cipher}{}{}{*}} +# .endif +# +# login_saslauthd_server: +# driver = plaintext +# public_name = LOGIN +# server_prompts = "Username:: : Password::" +# # don't send system passwords over unencrypted connections +# server_condition = ${if saslauthd{{$auth1}{$auth2}}{1}{0}} +# server_set_id = $auth1 +# .ifndef AUTH_SERVER_ALLOW_NOTLS_PASSWORDS +# server_advertise_condition = ${if eq{$tls_cipher}{}{}{*}} +# .endif +# +# ntlm_sasl_server: +# driver = cyrus_sasl +# public_name = NTLM +# server_realm = +# server_set_id = $auth1 +# .ifndef AUTH_SERVER_ALLOW_NOTLS_PASSWORDS +# server_advertise_condition = ${if eq{$tls_cipher}{}{}{*}} +# .endif +# +# digest_md5_sasl_server: +# driver = cyrus_sasl +# public_name = DIGEST-MD5 +# server_realm = +# server_set_id = $auth1 +# .ifndef AUTH_SERVER_ALLOW_NOTLS_PASSWORDS +# server_advertise_condition = ${if eq{$tls_cipher}{}{}{*}} +# .endif + +# Authentcate against cyrus-sasl +# This is mainly untested, please report any problems to +# pkg-exim4-users@lists.alioth.debian.org. +# cram_md5_sasl_server: +# driver = cyrus_sasl +# public_name = CRAM-MD5 +# server_realm = +# server_set_id = $auth1 +# +# plain_sasl_server: +# driver = cyrus_sasl +# public_name = PLAIN +# server_realm = +# server_set_id = $auth1 +# .ifndef AUTH_SERVER_ALLOW_NOTLS_PASSWORDS +# server_advertise_condition = ${if eq{$tls_cipher}{}{}{*}} +# .endif +# +# login_sasl_server: +# driver = cyrus_sasl +# public_name = LOGIN +# server_realm = +# server_set_id = $auth1 +# .ifndef AUTH_SERVER_ALLOW_NOTLS_PASSWORDS +# server_advertise_condition = ${if eq{$tls_cipher}{}{}{*}} +# .endif + +# Authenticate against courier authdaemon + +# This is now the (working!) example from +# http://www.exim.org/eximwiki/FAQ/Policy_controls/Q0730 +# Possible pitfall: access rights on /var/run/courier/authdaemon/socket. +# plain_courier_authdaemon: +# driver = plaintext +# public_name = PLAIN +# server_condition = \ +# ${extract {ADDRESS} \ +# {${readsocket{/var/run/courier/authdaemon/socket} \ +# {AUTH ${strlen:exim\nlogin\n$auth2\n$auth3\n}\nexim\nlogin\n$auth2\n$auth3\n} }} \ +# {yes} \ +# fail} +# server_set_id = $auth2 +# .ifndef AUTH_SERVER_ALLOW_NOTLS_PASSWORDS +# server_advertise_condition = ${if eq{$tls_cipher}{}{}{*}} +# .endif + +# login_courier_authdaemon: +# driver = plaintext +# public_name = LOGIN +# server_prompts = Username:: : Password:: +# server_condition = \ +# ${extract {ADDRESS} \ +# {${readsocket{/var/run/courier/authdaemon/socket} \ +# {AUTH ${strlen:exim\nlogin\n$auth1\n$auth2\n}\nexim\nlogin\n$auth1\n$auth2\n} }} \ +# {yes} \ +# fail} +# server_set_id = $auth1 +# .ifndef AUTH_SERVER_ALLOW_NOTLS_PASSWORDS +# server_advertise_condition = ${if eq{$tls_cipher}{}{}{*}} +# .endif + +# This one is a bad hack to support the broken version 4.xx of +# Microsoft Outlook Express which violates the RFCs by demanding +# "250-AUTH=" instead of "250-AUTH ". +# If your list of offered authenticators is other than PLAIN and LOGIN, +# you need to adapt the public_name line manually. +# It has to be the last authenticator to work and has not been tested +# well. Use at your own risk. +# See the thread entry point from +# http://www.exim.org/mail-archives/exim-users/Week-of-Mon-20050214/msg00213.html +# for the related discussion on the exim-users mailing list. +# Thanks to Fred Viles for this great work. + +# support_broken_outlook_express_4_server: +# driver = plaintext +# public_name = "\r\n250-AUTH=PLAIN LOGIN" +# server_prompts = User Name : Password +# server_condition = no +# .ifndef AUTH_SERVER_ALLOW_NOTLS_PASSWORDS +# server_advertise_condition = ${if eq{$tls_cipher}{}{}{*}} +# .endif + +############## +# See /usr/share/doc/exim4-base/README.Debian.gz +############## + +# These examples below are the equivalent for client side authentication. +# They get the passwords from CONFDIR/passwd.client, whose format is +# defined in exim4_passwd_client(5) + +# Because AUTH PLAIN and AUTH LOGIN send the password in clear, we +# only allow these mechanisms over encrypted connections by default. +# You can set AUTH_CLIENT_ALLOW_NOTLS_PASSWORDS to allow unencrypted +# clear text password authentication on all connections. + +cram_md5: + driver = cram_md5 + public_name = CRAM-MD5 + client_name = ${extract{1}{:}{${lookup{$host}nwildlsearch{CONFDIR/passwd.client}{$value}fail}}} + client_secret = ${extract{2}{:}{${lookup{$host}nwildlsearch{CONFDIR/passwd.client}{$value}fail}}} + +# this returns the matching line from passwd.client and doubles all ^ +PASSWDLINE=${sg{\ + ${lookup{$host}nwildlsearch{CONFDIR/passwd.client}{$value}fail}\ + }\ + {\\N[\\^]\\N}\ + {^^}\ + } + +plain: + driver = plaintext + public_name = PLAIN +.ifndef AUTH_CLIENT_ALLOW_NOTLS_PASSWORDS + client_send = "<; ${if !eq{$tls_cipher}{}\ + {^${extract{1}{:}{PASSWDLINE}}\ + ^${sg{PASSWDLINE}{\\N([^:]+:)(.*)\\N}{\\$2}}\ + }fail}" +.else + client_send = "<; ^${extract{1}{:}{PASSWDLINE}}\ + ^${sg{PASSWDLINE}{\\N([^:]+:)(.*)\\N}{\\$2}}" +.endif + +login: + driver = plaintext + public_name = LOGIN +.ifndef AUTH_CLIENT_ALLOW_NOTLS_PASSWORDS + # Return empty string if not non-TLS AND looking up $host in passwd-file + # yields a non-empty string; fail otherwise. + client_send = "<; ${if and{\ + {!eq{$tls_cipher}{}}\ + {!eq{PASSWDLINE}{}}\ + }\ + {}fail}\ + ; ${extract{1}{::}{PASSWDLINE}}\ + ; ${sg{PASSWDLINE}{\\N([^:]+:)(.*)\\N}{\\$2}}" +.else + # Return empty string if looking up $host in passwd-file yields a + # non-empty string; fail otherwise. + client_send = "<; ${if !eq{PASSWDLINE}{}\ + {}fail}\ + ; ${extract{1}{::}{PASSWDLINE}}\ + ; ${sg{PASSWDLINE}{\\N([^:]+:)(.*)\\N}{\\$2}}" +.endif +##################################################### +### end auth/30_exim4-config_examples +##################################################### diff --git a/get-token b/get-token deleted file mode 100755 index b7b5e02..0000000 --- a/get-token +++ /dev/null @@ -1,77 +0,0 @@ -#!/bin/bash -# Get an AFS token for the given user. -# -# This is used to deliver mail with the appropriate credentials. -# -# Usage: -# -# get-token $USER -# - If user is root, call this script as $USER -# -# get-token $USER norecurse -# - Don't recursively call this script, even if user if root - -REALUSER=$(whoami) -USER=$1 -LOGFILE=/tmp/exim4/weird-error.log - -if test "$REALUSER" = "root"; then - if test "$2" = "norecurse"; then - echo "Error: running as root even after trying to change to $USER" \ - >> $LOGFILE - exit 1 - fi - - # Decide whether the user exists: getent returns 0 error code if so - getent passwd "$USER" >/dev/null - if test $? -ne 0; then - echo "$USER is not a local user, so ignoring them" \ - >> $LOGFILE - exit 1 - else - USER=$(getent passwd "$1" | cut -d':' -f 1) - exec su $USER -c "$0 $1 norecurse" - fi -fi - -# Make sure USER exists, and resolve UIDs to a login name -USER=$(getent passwd "$USER" | cut -d':' -f 1) -LOGFILE=/tmp/exim4/get-token-log.$USER - -if test -z "$USER"; then - echo "$USER is not a local user, so ignoring them" \ - >> /tmp/exim4/weird-error.log - exit 1 -fi - -# fuse stdin and stderr -exec 2>&1 - -# all future output goes to this file -exec >& $LOGFILE - -# print name of user -echo "Running as user $REALUSER" - -# debugging output -if test "$2" = "debug"; then - shift; shift - echo "Debugging output: $*" -fi - -# set the credentials cache -export KRB5CCNAME=FILE:/tmp/exim4/krb5cc_$USER.email - -# eliminate any previous tokens -kdestroy -unlog -KEYTAB=/etc/keytabs/user.daemon/$USER - -# display command-to-be-invoked as a sanity check -echo kinit -kt $KEYTAB $USER/daemon@HCOOP.NET - -kinit -kt $KEYTAB $USER/daemon@HCOOP.NET -aklog - -# list tokens, for the sake of debugging -#tokens diff --git a/mailmandb-ext b/mailmandb-ext deleted file mode 100644 index 8c00d0d..0000000 --- a/mailmandb-ext +++ /dev/null @@ -1,2 +0,0 @@ -wort@lists.hcoop.net: true -wort-off-topic@lists.hcoop.net: true diff --git a/passwd.client b/passwd.client new file mode 100644 index 0000000..2f06b8d --- /dev/null +++ b/passwd.client @@ -0,0 +1,7 @@ +# password file used when the local exim is authenticating to a remote +# host as a client. +# +# see exim4_passwd_client(5) for more documentation +# +# Example: +### target.mail.server.example:login:password diff --git a/update-exim4.conf.conf b/update-exim4.conf.conf index 55c22fa..7206f7b 100644 --- a/update-exim4.conf.conf +++ b/update-exim4.conf.conf @@ -8,8 +8,8 @@ # changes, so this is usually fine, but will break local schemes that mess # around with multiple versions of the file. # -# update-exim4.conf uses this file to determine variable values to replace -# the DEBCONFsomethingDEBCONF strings in the configuration template files. +# update-exim4.conf uses this file to determine variable values to generate +# exim configuration macros for the configuration file. # # Most settings found in here do have corresponding questions in the # Debconf configuration, but not all of them. @@ -17,8 +17,8 @@ # This is a Debian specific file dc_eximconfig_configtype='internet' -dc_other_hostnames='hcoop.net:deleuze.hcoop.net:hopper.hcoop.net:mire.hcoop.net' -dc_local_interfaces='' +dc_other_hostnames='hopper.hcoop.net' +dc_local_interfaces='0.0.0.0' dc_readhost='' dc_relay_domains='' dc_minimaldns='false' @@ -28,9 +28,4 @@ CFILEMODE='644' dc_use_split_config='true' dc_hide_mailname='' dc_mailname_in_oh='true' -dc_localdelivery='maildir_home' - -# hcoop-change: Additional nonstandard items - -# sets qualify_domain -dc_visiblename='hcoop.net' +dc_localdelivery='mail_spool' -- 2.20.1