debian/debconf/conf.d/main/02_exim4-config_options

   1
   2 ### main/02_exim4-config_options
   3 #################################
   4
   5
   6 # Defines the access control list that is run when an
   7 # SMTP MAIL command is received.
   8 #
   9 .ifndef MAIN_ACL_CHECK_MAIL
  10 MAIN_ACL_CHECK_MAIL = acl_check_mail
  11 .endif
  12 acl_smtp_mail = MAIN_ACL_CHECK_MAIL
  13
  14
  15 # Defines the access control list that is run when an
  16 # SMTP RCPT command is received.
  17 #
  18 .ifndef MAIN_ACL_CHECK_RCPT
  19 MAIN_ACL_CHECK_RCPT = acl_check_rcpt
  20 .endif
  21 acl_smtp_rcpt = MAIN_ACL_CHECK_RCPT
  22
  23
  24 # Defines the access control list that is run when an
  25 # SMTP DATA command is received.
  26 #
  27 .ifndef MAIN_ACL_CHECK_DATA
  28 MAIN_ACL_CHECK_DATA = acl_check_data
  29 .endif
  30 acl_smtp_data = MAIN_ACL_CHECK_DATA
  31
  32
  33 # Message size limit. The default (used when MESSAGE_SIZE_LIMIT
  34 # is unset) is 50 MB
  35 .ifdef MESSAGE_SIZE_LIMIT
  36 message_size_limit = MESSAGE_SIZE_LIMIT
  37 .endif
  38
  39
  40 # If you are running exim4-daemon-heavy or a custom version of Exim that
  41 # was compiled with the content-scanning extension, you can cause incoming
  42 # messages to be automatically scanned for viruses. You have to modify the
  43 # configuration in two places to set this up. The first of them is here,
  44 # where you define the interface to your scanner. This example is typical
  45 # for ClamAV; see the manual for details of what to set for other virus
  46 # scanners. The second modification is in the acl_check_data access
  47 # control list.
  48
  49 # av_scanner = clamd:/var/run/clamav/clamd.ctl
  50
  51
  52 # For spam scanning, there is a similar option that defines the interface to
  53 # SpamAssassin. You do not need to set this if you are using the default, which
  54 # is shown in this commented example. As for virus scanning, you must also
  55 # modify the acl_check_data access control list to enable spam scanning.
  56
  57 # spamd_address = 127.0.0.1 783
  58
  59 # Domain used to qualify unqualified recipient addresses
  60 # If this option is not set, the qualify_domain value is used.
  61 # qualify_recipient = <value of qualify_domain>
  62
  63
  64 # Allow Exim to recognize addresses of the form "user@[10.11.12.13]",
  65 # where the domain part is a "domain literal" (an IP address) instead
  66 # of a named domain. The RFCs require this facility, but it is disabled
  67 # in the default config since it is seldomly used and frequently abused.
  68 # Domain literal support also needs a special router, which is automatically
  69 # enabled if you use the enable macro MAIN_ALLOW_DOMAIN_LITERALS.
  70 # Additionally, you might want to make your local IP addresses (or @[])
  71 # local domains.
  72 .ifdef MAIN_ALLOW_DOMAIN_LITERALS
  73 allow_domain_literals
  74 .endif
  75
  76
  77 # Do a reverse DNS lookup on all incoming IP calls, in order to get the
  78 # true host name. If you feel this is too expensive, the networks for
  79 # which a lookup is done can be listed here.
  80 .ifndef DC_minimaldns
  81 .ifndef MAIN_HOST_LOOKUP
  82 MAIN_HOST_LOOKUP = *
  83 .endif
  84 host_lookup = MAIN_HOST_LOOKUP
  85 .endif
  86
  87
  88 # In a minimaldns setup, update-exim4.conf guesses the hostname and
  89 # dumps it here to avoid DNS lookups being done at Exim run time.
  90 .ifdef MAIN_HARDCODE_PRIMARY_HOSTNAME
  91 primary_hostname = MAIN_HARDCODE_PRIMARY_HOSTNAME
  92 .endif
  93
  94 # The settings below, which are actually the same as the defaults in the
  95 # code, cause Exim to make RFC 1413 (ident) callbacks for all incoming SMTP
  96 # calls. You can limit the hosts to which these calls are made, and/or change
  97 # the timeout that is used. If you set the timeout to zero, all RFC 1413 calls
  98 # are disabled. RFC 1413 calls are cheap and can provide useful information
  99 # for tracing problem messages, but some hosts and firewalls are
 100 # misconfigured to drop the requests instead of either answering or
 101 # rejecting them. This can result in a timeout instead of an immediate refused
 102 # connection, leading to delays on starting up SMTP sessions. (The default was
 103 # reduced from 30s to 5s for release 4.61.)
 104 # rfc1413_hosts = *
 105 # rfc1413_query_timeout = 5s
 106
 107 # When using an external relay tester (such as rt.njabl.org and/or the
 108 # currently defunct relay-test.mail-abuse.org, the test may be aborted
 109 # since exim complains about "too many nonmail commands". If you want
 110 # the test to complete, add the host from where "your" relay tester
 111 # connects from to the MAIN_SMTP_ACCEPT_MAX_NOMAIL_HOSTS macro.
 112 # Please note that a non-empty setting may cause extra DNS lookups to
 113 # happen, which is the reason why this option is commented out in the
 114 # default settings.
 115 # MAIN_SMTP_ACCEPT_MAX_NOMAIL_HOSTS = !rt.njabl.org
 116 .ifdef MAIN_SMTP_ACCEPT_MAX_NOMAIL_HOSTS
 117 smtp_accept_max_nonmail_hosts = MAIN_SMTP_ACCEPT_MAX_NOMAIL_HOSTS
 118 .endif
 119
 120 # By default, exim forces a Sender: header containing the local
 121 # account name at the local host name in all locally submitted messages
 122 # that don't have the local account name at the local host name in the
 123 # From: header, deletes any Sender: header present in the submitted
 124 # message and forces the envelope sender of all locally submitted
 125 # messages to the local account name at the local host name.
 126 # The following settings allow local users to specify their own envelope sender
 127 # in a locally submitted message. Sender: headers existing in a locally
 128 # submitted message are not removed, and no automatic Sender: headers
 129 # are added. These settings are fine for most hosts.
 130 # If you run exim on a classical multi-user systems where all users
 131 # have local mailboxes that can be reached via SMTP from the Internet
 132 # with the local FQDN as the domain part of the address, you might want
 133 # to disable the following three lines for traceability reasons.
 134 .ifndef MAIN_FORCE_SENDER
 135 local_from_check = false
 136 local_sender_retain = true
 137 untrusted_set_sender = *
 138 .endif
 139
 140
 141 # By default, Exim expects all envelope addresses to be fully qualified, that
 142 # is, they must contain both a local part and a domain. Configure exim
 143 # to accept unqualified addresses from certain hosts. When this is done,
 144 # unqualified addresses are qualified using the settings of qualify_domain
 145 # and/or qualify_recipient (see above).
 146 # sender_unqualified_hosts = <unset>
 147 # recipient_unqualified_hosts = <unset>
 148
 149
 150 # Configure Exim to support the "percent hack" for certain domains.
 151 # The "percent hack" is the feature by which mail addressed to x%y@z
 152 # (where z is one of the domains listed) is locally rerouted to x@y
 153 # and sent on. If z is not one of the "percent hack" domains, x%y is
 154 # treated as an ordinary local part. The percent hack is rarely needed
 155 # nowadays but frequently abused. You should not enable it unless you
 156 # are sure that you really need it.
 157 # percent_hack_domains = <unset>
 158
 159
 160 # Bounce handling
 161 .ifndef MAIN_IGNORE_BOUNCE_ERRORS_AFTER
 162 MAIN_IGNORE_BOUNCE_ERRORS_AFTER = 2d
 163 .endif
 164 ignore_bounce_errors_after = MAIN_IGNORE_BOUNCE_ERRORS_AFTER
 165
 166 .ifndef MAIN_TIMEOUT_FROZEN_AFTER
 167 MAIN_TIMEOUT_FROZEN_AFTER = 7d
 168 .endif
 169 timeout_frozen_after = MAIN_TIMEOUT_FROZEN_AFTER
 170
 171 .ifndef MAIN_FREEZE_TELL
 172 MAIN_FREEZE_TELL = postmaster
 173 .endif
 174 freeze_tell = MAIN_FREEZE_TELL
 175
 176
 177 # Define spool directory
 178 .ifndef SPOOLDIR
 179 SPOOLDIR = /var/spool/exim4
 180 .endif
 181 spool_directory = SPOOLDIR
 182
 183
 184 # trusted users can set envelope-from to arbitrary values
 185 .ifndef MAIN_TRUSTED_USERS
 186 MAIN_TRUSTED_USERS = uucp
 187 .endif
 188 trusted_users = MAIN_TRUSTED_USERS
 189 .ifdef MAIN_TRUSTED_GROUPS
 190 trusted_groups = MAIN_TRUSTED_GROUPS
 191 .endif
 192
 193
 194 # users in admin group can do many other things
 195 # admin_groups = <unset>
 196
 197
 198 # SMTP Banner. The example includes the Debian version in the SMTP dialog
 199 # MAIN_SMTP_BANNER = "${primary_hostname} ESMTP Exim ${version_number} (Debian package MAIN_PACKAGE_VERSION) ${tod_full}"
 200 # smtp_banner = $smtp_active_hostname ESMTP Exim $version_number $tod_full