Merge branch 'debian' into hcoop_489
[hcoop/debian/exim4.git] / debian / debconf / conf.d / main / 02_exim4-config_options
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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
10MAIN_ACL_CHECK_MAIL = acl_check_mail
11.endif
12acl_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
19MAIN_ACL_CHECK_RCPT = acl_check_rcpt
20.endif
21acl_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
28MAIN_ACL_CHECK_DATA = acl_check_data
29.endif
30acl_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
36message_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
89fb561f 67# in the default config since it is rarely used and frequently abused.
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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
73allow_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
82MAIN_HOST_LOOKUP = *
83.endif
84host_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
91primary_hostname = MAIN_HARDCODE_PRIMARY_HOSTNAME
92.endif
93
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94# The settings below cause Exim to make RFC 1413 (ident) callbacks
95# for all incoming SMTP calls. You can limit the hosts to which these
96# calls are made, and/or change the timeout that is used. If you set
97# the timeout to zero, all RFC 1413 calls are disabled. RFC 1413 calls
98# are cheap and can provide useful information for tracing problem
99# messages, but some hosts and firewalls have problems with them.
100# This can result in a timeout instead of an immediate refused
101# connection, leading to delays on starting up SMTP sessions.
102# (The default was reduced from 30s to 5s for release 4.61. and to
103# disabled for release 4.86)
104#
105#rfc1413_hosts = *
106#rfc1413_query_timeout = 5s
107
108
109# Enable an efficiency feature. We advertise the feature; clients
110# may request to use it. For multi-recipient mails we then can
111# reject or accept per-user after the message is received.
112#
113prdr_enable = true
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114
115# When using an external relay tester (such as rt.njabl.org and/or the
116# currently defunct relay-test.mail-abuse.org, the test may be aborted
117# since exim complains about "too many nonmail commands". If you want
118# the test to complete, add the host from where "your" relay tester
119# connects from to the MAIN_SMTP_ACCEPT_MAX_NOMAIL_HOSTS macro.
120# Please note that a non-empty setting may cause extra DNS lookups to
121# happen, which is the reason why this option is commented out in the
122# default settings.
123# MAIN_SMTP_ACCEPT_MAX_NOMAIL_HOSTS = !rt.njabl.org
124.ifdef MAIN_SMTP_ACCEPT_MAX_NOMAIL_HOSTS
125smtp_accept_max_nonmail_hosts = MAIN_SMTP_ACCEPT_MAX_NOMAIL_HOSTS
126.endif
127
128# By default, exim forces a Sender: header containing the local
129# account name at the local host name in all locally submitted messages
130# that don't have the local account name at the local host name in the
131# From: header, deletes any Sender: header present in the submitted
132# message and forces the envelope sender of all locally submitted
133# messages to the local account name at the local host name.
134# The following settings allow local users to specify their own envelope sender
135# in a locally submitted message. Sender: headers existing in a locally
136# submitted message are not removed, and no automatic Sender: headers
137# are added. These settings are fine for most hosts.
138# If you run exim on a classical multi-user systems where all users
139# have local mailboxes that can be reached via SMTP from the Internet
140# with the local FQDN as the domain part of the address, you might want
141# to disable the following three lines for traceability reasons.
142.ifndef MAIN_FORCE_SENDER
143local_from_check = false
144local_sender_retain = true
145untrusted_set_sender = *
146.endif
147
148
149# By default, Exim expects all envelope addresses to be fully qualified, that
150# is, they must contain both a local part and a domain. Configure exim
151# to accept unqualified addresses from certain hosts. When this is done,
152# unqualified addresses are qualified using the settings of qualify_domain
153# and/or qualify_recipient (see above).
154# sender_unqualified_hosts = <unset>
155# recipient_unqualified_hosts = <unset>
156
157
158# Configure Exim to support the "percent hack" for certain domains.
159# The "percent hack" is the feature by which mail addressed to x%y@z
160# (where z is one of the domains listed) is locally rerouted to x@y
161# and sent on. If z is not one of the "percent hack" domains, x%y is
162# treated as an ordinary local part. The percent hack is rarely needed
163# nowadays but frequently abused. You should not enable it unless you
164# are sure that you really need it.
165# percent_hack_domains = <unset>
166
167
168# Bounce handling
169.ifndef MAIN_IGNORE_BOUNCE_ERRORS_AFTER
170MAIN_IGNORE_BOUNCE_ERRORS_AFTER = 2d
171.endif
172ignore_bounce_errors_after = MAIN_IGNORE_BOUNCE_ERRORS_AFTER
173
174.ifndef MAIN_TIMEOUT_FROZEN_AFTER
175MAIN_TIMEOUT_FROZEN_AFTER = 7d
176.endif
177timeout_frozen_after = MAIN_TIMEOUT_FROZEN_AFTER
178
179.ifndef MAIN_FREEZE_TELL
180MAIN_FREEZE_TELL = postmaster
181.endif
182freeze_tell = MAIN_FREEZE_TELL
183
184
185# Define spool directory
186.ifndef SPOOLDIR
187SPOOLDIR = /var/spool/exim4
188.endif
189spool_directory = SPOOLDIR
190
191
192# trusted users can set envelope-from to arbitrary values
193.ifndef MAIN_TRUSTED_USERS
194MAIN_TRUSTED_USERS = uucp
195.endif
196trusted_users = MAIN_TRUSTED_USERS
197.ifdef MAIN_TRUSTED_GROUPS
198trusted_groups = MAIN_TRUSTED_GROUPS
199.endif
200
201
202# users in admin group can do many other things
203# admin_groups = <unset>
204
205
206# SMTP Banner. The example includes the Debian version in the SMTP dialog
207# MAIN_SMTP_BANNER = "${primary_hostname} ESMTP Exim ${version_number} (Debian package MAIN_PACKAGE_VERSION) ${tod_full}"
208# smtp_banner = $smtp_active_hostname ESMTP Exim $version_number $tod_full
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209
210.ifdef MAIN_KEEP_ENVIRONMENT
211keep_environment = MAIN_KEEP_ENVIRONMENT
212.else
213# set option to empty value to avoid warning.
214keep_environment =
215.endif
216.ifdef MAIN_ADD_ENVIRONMENT
217add_environment = MAIN_ADD_ENVIRONMENT
218.endif