Testsuite: more portable implementation of "showenv"
[exim.git] / src / src / EDITME
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1##################################################
2# The Exim mail transport agent #
3##################################################
4
5# This is the template for Exim's main build-time configuration file. It
6# contains settings that are independent of any operating system. These are
7# things that are mostly sysadmin choices. The items below are divided into
8# those you must specify, those you probably want to specify, those you might
9# often want to specify, and those that you almost never need to mention.
10
11# Edit this file and save the result to a file called Local/Makefile within the
12# Exim distribution directory before running the "make" command.
13
14# Things that depend on the operating system have default settings in
15# OS/Makefile-Default, but these are overridden for some OS by files called
16# called OS/Makefile-<osname>. You can further override these by creating files
17# called Local/Makefile-<osname>, where "<osname>" stands for the name of your
18# operating system - look at the names in the OS directory to see which names
19# are recognized.
20
21# However, if you are building Exim for a single OS only, you don't need to
22# worry about setting up Local/Makefile-<osname>. Any build-time configuration
23# settings you require can in fact be placed in the one file called
24# Local/Makefile. It is only if you are building for several OS from the same
25# source files that you need to worry about splitting off your own OS-dependent
26# settings into separate files. (There's more explanation about how this all
27# works in the toplevel README file, under "Modifying the building process", as
28# well as in the Exim specification.)
29
30# One OS-specific thing that may need to be changed is the command for running
31# the C compiler; the overall default is gcc, but some OS Makefiles specify cc.
32# You can override anything that is set by putting CC=whatever in your
33# Local/Makefile.
34
35# NOTE: You should never need to edit any of the distributed Makefiles; all
36# overriding can be done in your Local/Makefile(s). This will make it easier
37# for you when the next release comes along.
38
39# The location of the X11 libraries is something else that is quite variable
40# even between different versions of the same operating system (and indeed
41# there are different versions of X11 as well, of course). The four settings
42# concerned here are X11, XINCLUDE, XLFLAGS (linking flags) and X11_LD_LIB
43# (dynamic run-time library). You need not worry about X11 unless you want to
44# compile the Exim monitor utility. Exim itself does not use X11.
45
46# Another area of variability between systems is the type and location of the
47# DBM library package. Exim has support for ndbm, gdbm, tdb, and Berkeley DB.
48# By default the code assumes ndbm; this often works with gdbm or DB, provided
49# they are correctly installed, via their compatibility interfaces. However,
50# Exim can also be configured to use the native calls for Berkeley DB (obsolete
51# versions 1.85, 2.x, 3.x, or the current 4.x version) and also for gdbm.
52
53# For some operating systems, a default DBM library (other than ndbm) is
54# selected by a setting in the OS-specific Makefile. Most modern OS now have
55# a DBM library installed as standard, and in many cases this will be selected
56# for you by the OS-specific configuration. If Exim compiles without any
57# problems, you probably do not have to worry about the DBM library. If you
58# do want or need to change it, you should first read the discussion in the
59# file doc/dbm.discuss.txt, which also contains instructions for testing Exim's
60# interface to the DBM library.
61
62# In Local/Makefiles blank lines and lines starting with # are ignored. It is
63# also permitted to use the # character to add a comment to a setting, for
64# example
65#
66# EXIM_GID=42 # the "mail" group
67#
68# However, with some versions of "make" this works only if there is no white
69# space between the end of the setting and the #, so perhaps it is best
70# avoided. A consequence of this facility is that it is not possible to have
71# the # character present in any setting, but I can't think of any cases where
72# this would be wanted.
73###############################################################################
74
75
76
77###############################################################################
78# THESE ARE THINGS YOU MUST SPECIFY #
79###############################################################################
80
81# Exim will not build unless you specify BIN_DIRECTORY, CONFIGURE_FILE, and
82# EXIM_USER. You also need EXIM_GROUP if EXIM_USER specifies a uid by number.
83
84# If you don't specify SPOOL_DIRECTORY, Exim won't fail to build. However, it
85# really is a very good idea to specify it here rather than at run time. This
86# is particularly true if you let the logs go to their default location in the
87# spool directory, because it means that the location of the logs is known
88# before Exim has read the run time configuration file.
89
90#------------------------------------------------------------------------------
91# BIN_DIRECTORY defines where the exim binary will be installed by "make
92# install". The path is also used internally by Exim when it needs to re-invoke
93# itself, either to send an error message, or to recover root privilege. Exim's
94# utility binaries and scripts are also installed in this directory. There is
95# no "standard" place for the binary directory. Some people like to keep all
96# the Exim files under one directory such as /usr/exim; others just let the
97# Exim binaries go into an existing directory such as /usr/sbin or
98# /usr/local/sbin. The installation script will try to create this directory,
99# and any superior directories, if they do not exist.
100
101BIN_DIRECTORY=/usr/exim/bin
102
103
104#------------------------------------------------------------------------------
105# CONFIGURE_FILE defines where Exim's run time configuration file is to be
106# found. It is the complete pathname for the file, not just a directory. The
107# location of all other run time files and directories can be changed in the
108# run time configuration file. There is a lot of variety in the choice of
109# location in different OS, and in the preferences of different sysadmins. Some
110# common locations are in /etc or /etc/mail or /usr/local/etc or
111# /usr/local/etc/mail. Another possibility is to keep all the Exim files under
112# a single directory such as /usr/exim. Whatever you choose, the installation
113# script will try to make the directory and any superior directories if they
114# don't exist. It will also install a default runtime configuration if this
115# file does not exist.
116
117CONFIGURE_FILE=/usr/exim/configure
118
119# It is possible to specify a colon-separated list of files for CONFIGURE_FILE.
120# In this case, Exim will use the first of them that exists when it is run.
121# However, if a list is specified, the installation script no longer tries to
122# make superior directories or to install a default runtime configuration.
123
124
125#------------------------------------------------------------------------------
126# The Exim binary must normally be setuid root, so that it starts executing as
127# root, but (depending on the options with which it is called) it does not
128# always need to retain the root privilege. These settings define the user and
129# group that is used for Exim processes when they no longer need to be root. In
130# particular, this applies when receiving messages and when doing remote
131# deliveries. (Local deliveries run as various non-root users, typically as the
10385c15 132# owner of a local mailbox.) Specifying these values as root is not supported.
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133
134EXIM_USER=
135
136# If you specify EXIM_USER as a name, this is looked up at build time, and the
137# uid number is built into the binary. However, you can specify that this
138# lookup is deferred until runtime. In this case, it is the name that is built
139# into the binary. You can do this by a setting of the form:
140
141# EXIM_USER=ref:exim
142
143# In other words, put "ref:" in front of the user name. If you set EXIM_USER
144# like this, any value specified for EXIM_GROUP is also passed "by reference".
145# Although this costs a bit of resource at runtime, it is convenient to use
146# this feature when building binaries that are to be run on multiple systems
147# where the name may refer to different uids. It also allows you to build Exim
148# on a system where there is no Exim user defined.
149
150# If the setting of EXIM_USER is numeric (e.g. EXIM_USER=42), there must
151# also be a setting of EXIM_GROUP. If, on the other hand, you use a name
152# for EXIM_USER (e.g. EXIM_USER=exim), you don't need to set EXIM_GROUP unless
153# you want to use a group other than the default group for the given user.
154
155# EXIM_GROUP=
156
157# Many sites define a user called "exim", with an appropriate default group,
158# and use
159#
160# EXIM_USER=exim
161#
162# while leaving EXIM_GROUP unspecified (commented out).
163
164
165#------------------------------------------------------------------------------
166# SPOOL_DIRECTORY defines the directory where all the data for messages in
167# transit is kept. It is strongly recommended that you define it here, though
168# it is possible to leave this till the run time configuration.
169
170# Exim creates the spool directory if it does not exist. The owner and group
171# will be those defined by EXIM_USER and EXIM_GROUP, and this also applies to
172# all the files and directories that are created in the spool directory.
173
174# Almost all installations choose this:
175
176SPOOL_DIRECTORY=/var/spool/exim
177
178
179
180###############################################################################
181# THESE ARE THINGS YOU PROBABLY WANT TO SPECIFY #
182###############################################################################
183
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184# If you need extra header file search paths on all compiles, put the -I
185# options in INCLUDE. If you want the extra searches only for certain
186# parts of the build, see more specific xxx_INCLUDE variables below.
187
188# INCLUDE=-I/example/include
189
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190# You need to specify some routers and transports if you want the Exim that you
191# are building to be capable of delivering mail. You almost certainly need at
192# least one type of lookup. You should consider whether you want to build
193# the Exim monitor or not.
194
195
196#------------------------------------------------------------------------------
197# These settings determine which individual router drivers are included in the
198# Exim binary. There are no defaults in the code; those routers that are wanted
199# must be defined here by setting the appropriate variables to the value "yes".
200# Including a router in the binary does not cause it to be used automatically.
201# It has also to be configured in the run time configuration file. By
202# commenting out those you know you don't want to use, you can make the binary
203# a bit smaller. If you are unsure, leave all of these included for now.
204
205ROUTER_ACCEPT=yes
206ROUTER_DNSLOOKUP=yes
207ROUTER_IPLITERAL=yes
208ROUTER_MANUALROUTE=yes
209ROUTER_QUERYPROGRAM=yes
210ROUTER_REDIRECT=yes
211
212# This one is very special-purpose, so is not included by default.
213
214# ROUTER_IPLOOKUP=yes
215
216
217#------------------------------------------------------------------------------
218# These settings determine which individual transport drivers are included in
219# the Exim binary. There are no defaults; those transports that are wanted must
220# be defined here by setting the appropriate variables to the value "yes".
221# Including a transport in the binary does not cause it to be used
222# automatically. It has also to be configured in the run time configuration
223# file. By commenting out those you know you don't want to use, you can make
224# the binary a bit smaller. If you are unsure, leave all of these included for
225# now.
226
227TRANSPORT_APPENDFILE=yes
228TRANSPORT_AUTOREPLY=yes
229TRANSPORT_PIPE=yes
230TRANSPORT_SMTP=yes
231
232# This one is special-purpose, and commonly not required, so it is not
233# included by default.
234
235# TRANSPORT_LMTP=yes
236
237
238#------------------------------------------------------------------------------
239# The appendfile transport can write messages to local mailboxes in a number
240# of formats. The code for three specialist formats, maildir, mailstore, and
241# MBX, is included only when requested. If you do not know what this is about,
242# leave these settings commented out.
243
244# SUPPORT_MAILDIR=yes
245# SUPPORT_MAILSTORE=yes
246# SUPPORT_MBX=yes
247
248
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249#------------------------------------------------------------------------------
250# See below for dynamic lookup modules.
8829633f 251#
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252# If not using package management but using this anyway, then think about how
253# you perform upgrades and revert them. You should consider the benefit of
254# embedding the Exim version number into LOOKUP_MODULE_DIR, so that you can
255# maintain two concurrent sets of modules.
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256#
257# *BEWARE*: ability to modify the files in LOOKUP_MODULE_DIR is equivalent to
258# the ability to modify the Exim binary, which is often setuid root! The Exim
259# developers only intend this functionality be used by OS software packagers
260# and we suggest that such packagings' integrity checks should be paranoid
261# about the permissions of the directory and the files within.
262
263# LOOKUP_MODULE_DIR=/usr/lib/exim/lookups/
e6d225ae 264
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265# To build a module dynamically, you'll need to define CFLAGS_DYNAMIC for
266# your platform. Eg:
267# CFLAGS_DYNAMIC=-shared -rdynamic
268# CFLAGS_DYNAMIC=-shared -rdynamic -fPIC
269
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270#------------------------------------------------------------------------------
271# These settings determine which file and database lookup methods are included
272# in the binary. See the manual chapter entitled "File and database lookups"
273# for discussion. DBM and lsearch (linear search) are included by default. If
274# you are unsure about the others, leave them commented out for now.
275# LOOKUP_DNSDB does *not* refer to general mail routing using the DNS. It is
276# for the specialist case of using the DNS as a general database facility (not
277# common).
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278# If set to "2" instead of "yes" then the corresponding lookup will be
279# built as a module and must be installed into LOOKUP_MODULE_DIR. You need to
280# add -export-dynamic -rdynamic to EXTRALIBS. You may also need to add -ldl to
281# EXTRALIBS so that dlopen() is available to Exim. You need to define
282# LOOKUP_MODULE_DIR above so the exim binary actually loads dynamic lookup
283# modules.
284# Also, instead of adding all the libraries/includes to LOOKUP_INCLUDE and
285# LOOKUP_LIBS, add them to the respective LOOKUP_*_INCLUDE and LOOKUP_*_LIBS
286# (where * is the name as given here in this list). That ensures that only
287# the dynamic library and not the exim binary will be linked against the
288# library.
289# NOTE: LDAP cannot be built as a module!
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290#
291# If your system has pkg-config then the _INCLUDE/_LIBS setting can be
292# handled for you automatically by also defining the _PC variable to reference
293# the name of the pkg-config package, if such is available.
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294
295LOOKUP_DBM=yes
296LOOKUP_LSEARCH=yes
663ee6d9 297LOOKUP_DNSDB=yes
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298
299# LOOKUP_CDB=yes
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300# LOOKUP_DSEARCH=yes
301# LOOKUP_IBASE=yes
302# LOOKUP_LDAP=yes
303# LOOKUP_MYSQL=yes
304# LOOKUP_NIS=yes
305# LOOKUP_NISPLUS=yes
306# LOOKUP_ORACLE=yes
307# LOOKUP_PASSWD=yes
308# LOOKUP_PGSQL=yes
13b685f9 309# LOOKUP_SQLITE=yes
f4b00a2d 310# LOOKUP_SQLITE_PC=sqlite3
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311# LOOKUP_WHOSON=yes
312
313# These two settings are obsolete; all three lookups are compiled when
314# LOOKUP_LSEARCH is enabled. However, we retain these for backward
315# compatibility. Setting one forces LOOKUP_LSEARCH if it is not set.
316
317# LOOKUP_WILDLSEARCH=yes
318# LOOKUP_NWILDLSEARCH=yes
319
320
321#------------------------------------------------------------------------------
322# If you have set LOOKUP_LDAP=yes, you should set LDAP_LIB_TYPE to indicate
323# which LDAP library you have. Unfortunately, though most of their functions
324# are the same, there are minor differences. Currently Exim knows about four
325# LDAP libraries: the one from the University of Michigan (also known as
326# OpenLDAP 1), OpenLDAP 2, the Netscape SDK library, and the library that comes
327# with Solaris 7 onwards. Uncomment whichever of these you are using.
328
329# LDAP_LIB_TYPE=OPENLDAP1
330# LDAP_LIB_TYPE=OPENLDAP2
331# LDAP_LIB_TYPE=NETSCAPE
332# LDAP_LIB_TYPE=SOLARIS
333
334# If you don't set any of these, Exim assumes the original University of
335# Michigan (OpenLDAP 1) library.
336
337
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338#------------------------------------------------------------------------------
339# The PCRE library is required for exim. There is no longer an embedded
340# version of the PCRE library included with the source code, instead you
341# must use a system library or build your own copy of PCRE.
342# In either case you must specify the library link info here. If the
343# PCRE header files are not in the standard search path you must also
344# modify the INCLUDE path (above)
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345#
346# Use PCRE_CONFIG to query the pcre-config command (first found in $PATH)
347# to find the include files and libraries, else use PCRE_LIBS and set INCLUDE
348# too if needed.
8eb9f5bd 349
6cda585a 350PCRE_CONFIG=yes
6a6084f8 351# PCRE_LIBS=-lpcre
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352
353
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354#------------------------------------------------------------------------------
355# Additional libraries and include directories may be required for some
356# lookup styles (e.g. LDAP, MYSQL or PGSQL). LOOKUP_LIBS is included only on
357# the command for linking Exim itself, not on any auxiliary programs. You
358# don't need to set LOOKUP_INCLUDE if the relevant directories are already
359# specified in INCLUDE. The settings below are just examples; -lpq is for
2050824c 360# PostgreSQL, -lgds is for Interbase, -lsqlite3 is for SQLite.
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361#
362# You do not need to use this for any lookup information added via pkg-config.
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363
364# LOOKUP_INCLUDE=-I /usr/local/ldap/include -I /usr/local/mysql/include -I /usr/local/pgsql/include
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365# LOOKUP_LIBS=-L/usr/local/lib -lldap -llber -lmysqlclient -lpq -lgds -lsqlite3
366
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367
368#------------------------------------------------------------------------------
369# Compiling the Exim monitor: If you want to compile the Exim monitor, a
370# program that requires an X11 display, then EXIM_MONITOR should be set to the
371# value "eximon.bin". Comment out this setting to disable compilation of the
372# monitor. The locations of various X11 directories for libraries and include
373# files are defaulted in the OS/Makefile-Default file, but can be overridden in
374# local OS-specific make files.
375
376EXIM_MONITOR=eximon.bin
377
2050824c 378
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379#------------------------------------------------------------------------------
380# Compiling Exim with content scanning support: If you want to compile Exim
381# with support for message body content scanning, set WITH_CONTENT_SCAN to
382# the value "yes". This will give you malware and spam scanning in the DATA ACL,
383# and the MIME ACL. Please read the documentation to learn more about these
384# features.
385
f7b63901 386# WITH_CONTENT_SCAN=yes
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387
388# If you want to use the deprecated "demime" condition in the DATA ACL,
389# uncomment the line below. Doing so will also explicitly turn on the
390# WITH_CONTENT_SCAN option. If possible, use the MIME ACL instead of
391# the "demime" condition.
392
f7b63901 393# WITH_OLD_DEMIME=yes
8523533c 394
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395# If you're using ClamAV and are backporting fixes to an old version, instead
396# of staying current (which is the more usual approach) then you may need to
397# use an older API which uses a STREAM command, now deprecated, instead of
398# zINSTREAM. If you need to set this, please let the Exim developers know, as
399# if nobody reports a need for it, we'll remove this option and clean up the
400# code. zINSTREAM was introduced with ClamAV 0.95.
401#
402# WITH_OLD_CLAMAV_STREAM=yes
403
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404#------------------------------------------------------------------------------
405# By default Exim includes code to support DKIM (DomainKeys Identified
406# Mail, RFC4871) signing and verification. Verification of signatures is
407# turned on by default. See the spec for information on conditionally
408# disabling it. To disable the inclusion of the entire feature, set
409# DISABLE_DKIM to "yes"
410
411# DISABLE_DKIM=yes
412
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413#------------------------------------------------------------------------------
414# Uncomment the following line to remove Per-Recipient-Data-Response support.
415
416# DISABLE_PRDR=yes
a8c8d6b5 417
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418#------------------------------------------------------------------------------
419# Uncomment the following line to remove OCSP stapling support in TLS,
420# from Exim. Note it can only be supported when built with
421# GnuTLS 3.1.3 or later, or OpenSSL
422
423# DISABLE_OCSP=yes
424
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425#------------------------------------------------------------------------------
426# By default, Exim has support for checking the AD bit in a DNS response, to
427# determine if DNSSEC validation was successful. If your system libraries
428# do not support that bit, then set DISABLE_DNSSEC to "yes"
429
430# DISABLE_DNSSEC=yes
431
432
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433#------------------------------------------------------------------------------
434# Compiling Exim with experimental features. These are documented in
435# experimental-spec.txt. "Experimental" means that the way these features are
f7b63901 436# implemented may still change. Backward compatibility is not guaranteed.
8523533c 437
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438# Uncomment the following line to add support for talking to dccifd. This
439# defaults the socket path to /usr/local/dcc/var/dccifd.
440
441# EXPERIMENTAL_DCC=yes
442
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443# Uncomment the following lines to add SPF support. You need to have libspf2
444# installed on your system (www.libspf2.org). Depending on where it is installed
445# you may have to edit the CFLAGS and LDFLAGS lines.
8523533c 446
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447# EXPERIMENTAL_SPF=yes
448# CFLAGS += -I/usr/local/include
449# LDFLAGS += -lspf2
450
451# Uncomment the following lines to add SRS (Sender rewriting scheme) support.
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452# You need to have libsrs_alt installed on your system (srs.mirtol.com).
453# Depending on where it is installed you may have to edit the CFLAGS and
454# LDFLAGS lines.
8523533c 455
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456# EXPERIMENTAL_SRS=yes
457# CFLAGS += -I/usr/local/include
458# LDFLAGS += -lsrs_alt
459
460# Uncomment the following lines to add Brightmail AntiSpam support. You need
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461# to have the Brightmail client SDK installed. Please check the experimental
462# documentation for implementation details. You need to edit the CFLAGS and
463# LDFLAGS lines.
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464
465# EXPERIMENTAL_BRIGHTMAIL=yes
466# CFLAGS += -I/opt/brightmail/bsdk-6.0/include
12cdb9e7 467# LDFLAGS += -lxml2_single -lbmiclient_single -L/opt/brightmail/bsdk-6.0/lib
8523533c 468
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469# Uncomment the following line to add DMARC checking capability, implemented
470# using libopendmarc libraries.
471# EXPERIMENTAL_DMARC=yes
472# CFLAGS += -I/usr/local/include
473# LDFLAGS += -lopendmarc
fd98a5c6 474
fd98a5c6 475
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476# Uncomment the following line to support Transport post-delivery actions,
477# eg. for logging to a database.
478# EXPERIMENTAL_TPDA=yes
479
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480# Uncomment the following line to add Redis lookup support
481# You need to have hiredis installed on your system (https://github.com/redis/hiredis).
482# Depending on where it is installed you may have to edit the CFLAGS and LDFLAGS lines.
483# EXPERIMENTAL_REDIS=yes
484# CFLAGS += -I/usr/local/include
485# LDFLAGS += -lhiredis
486
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487# Uncomment the following line to enable Experimental Proxy Protocol
488# EXPERIMENTAL_PROXY=yes
489
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490# Uncomment the following line to enable support for checking certiticate
491# ownership
492# EXPERIMENTAL_CERTNAMES=yes
493
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494# Uncomment the following line to add DSN support
495# EXPERIMENTAL_DSN=yes
059ec3d9 496
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497# Uncomment the following line to add DANE support
498# EXPERIMENTAL_DANE=yes
499
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500###############################################################################
501# THESE ARE THINGS YOU MIGHT WANT TO SPECIFY #
502###############################################################################
503
504# The items in this section are those that are commonly changed according to
505# the sysadmin's preferences, but whose defaults are often acceptable. The
506# first five are concerned with security issues, where differing levels of
507# paranoia are appropriate in different environments. Sysadmins also vary in
508# their views on appropriate levels of defence in these areas. If you do not
509# understand these issues, go with the defaults, which are used by many sites.
510
511
512#------------------------------------------------------------------------------
513# Although Exim is normally a setuid program, owned by root, it refuses to run
514# local deliveries as root by default. There is a runtime option called
515# "never_users" which lists the users that must never be used for local
516# deliveries. There is also the setting below, which provides a list that
517# cannot be overridden at runtime. This guards against problems caused by
518# unauthorized changes to the runtime configuration. You are advised not to
519# remove "root" from this option, but you can add other users if you want. The
926e1192 520# list is colon-separated. It must NOT contain any spaces.
059ec3d9 521
926e1192 522# FIXED_NEVER_USERS=root:bin:daemon
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523FIXED_NEVER_USERS=root
524
525
526#------------------------------------------------------------------------------
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527# By default, Exim insists that its configuration file be owned by root. You
528# can specify one additional permitted owner here.
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529
530# CONFIGURE_OWNER=
531
35edf2ff 532# If the configuration file is group-writeable, Exim insists by default that it
c1d94452 533# is owned by root. You can specify one additional permitted group owner here.
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534
535# CONFIGURE_GROUP=
536
537# If you specify CONFIGURE_OWNER or CONFIGURE_GROUP as a name, this is looked
538# up at build time, and the uid or gid number is built into the binary.
539# However, you can specify that the lookup is deferred until runtime. In this
540# case, it is the name that is built into the binary. You can do this by a
541# setting of the form:
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542
543# CONFIGURE_OWNER=ref:mail
35edf2ff 544# CONFIGURE_GROUP=ref:sysadmin
059ec3d9 545
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546# In other words, put "ref:" in front of the user or group name. Although this
547# costs a bit of resource at runtime, it is convenient to use this feature when
548# building binaries that are to be run on multiple systems where the names may
549# refer to different uids or gids. It also allows you to build Exim on a system
550# where the relevant user or group is not defined.
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551
552
553#------------------------------------------------------------------------------
554# The -C option allows Exim to be run with an alternate runtime configuration
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555# file. When this is used by root, root privilege is retained by the binary
556# (for any other caller including the Exim user, it is dropped). You can
557# restrict the location of alternate configurations by defining a prefix below.
558# Any file used with -C must then start with this prefix (except that /dev/null
559# is also permitted if the caller is root, because that is used in the install
560# script). If the prefix specifies a directory that is owned by root, a
561# compromise of the Exim account does not permit arbitrary alternate
562# configurations to be used. The prefix can be more restrictive than just a
563# directory (the second example).
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564
565# ALT_CONFIG_PREFIX=/some/directory/
566# ALT_CONFIG_PREFIX=/some/directory/exim.conf-
567
568
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569#------------------------------------------------------------------------------
570# When a user other than root uses the -C option to override the configuration
571# file (including the Exim user when re-executing Exim to regain root
572# privileges for local message delivery), this will normally cause Exim to
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DW
573# drop root privileges. The TRUSTED_CONFIG_LIST option, specifies a file which
574# contains a list of trusted configuration filenames, one per line. If the -C
575# option is used by the Exim user or by the user specified in the
576# CONFIGURE_OWNER setting, to specify a configuration file which is listed in
577# the TRUSTED_CONFIG_LIST file, then root privileges are not dropped by Exim.
578
579# TRUSTED_CONFIG_LIST=/usr/exim/trusted_configs
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580
581
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582#------------------------------------------------------------------------------
583# Uncommenting this option disables the use of the -D command line option,
584# which changes the values of macros in the runtime configuration file.
585# This is another protection against somebody breaking into the Exim account.
586
587# DISABLE_D_OPTION=yes
588
589
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PP
590#------------------------------------------------------------------------------
591# By contrast, you might be maintaining a system which relies upon the ability
592# to override values with -D and assumes that these will be passed through to
593# the delivery processes. As of Exim 4.73, this is no longer the case by
594# default. Going forward, we strongly recommend that you use a shim Exim
cc5fdbc2 595# configuration file owned by root stored under TRUSTED_CONFIG_LIST.
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596# That shim can set macros before .include'ing your main configuration file.
597#
598# As a strictly transient measure to ease migration to 4.73, the
599# WHITELIST_D_MACROS value definies a colon-separated list of macro-names
43236f35 600# which are permitted to be overridden from the command-line which will be
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PP
601# honoured by the Exim user. So these are macros that can persist to delivery
602# time.
603# Examples might be -DTLS or -DSPOOL=/some/dir. The values on the
604# command-line are filtered to only permit: [A-Za-z0-9_/.-]*
605#
606# This option is highly likely to be removed in a future release. It exists
607# only to make 4.73 as easy as possible to migrate to. If you use it, we
608# encourage you to schedule time to rework your configuration to not depend
609# upon it. Most people should not need to use this.
610#
611# By default, no macros are whitelisted for -D usage.
612
613# WHITELIST_D_MACROS=TLS:SPOOL
614
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615#------------------------------------------------------------------------------
616# Exim has support for the AUTH (authentication) extension of the SMTP
617# protocol, as defined by RFC 2554. If you don't know what SMTP authentication
618# is, you probably won't want to include this code, so you should leave these
619# settings commented out. If you do want to make use of SMTP authentication,
620# you must uncomment at least one of the following, so that appropriate code is
621# included in the Exim binary. You will then need to set up the run time
622# configuration to make use of the mechanism(s) selected.
623
624# AUTH_CRAM_MD5=yes
625# AUTH_CYRUS_SASL=yes
14aa5a05 626# AUTH_DOVECOT=yes
44bbabb5 627# AUTH_GSASL=yes
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628# AUTH_GSASL_PC=libgsasl
629# AUTH_HEIMDAL_GSSAPI=yes
630# AUTH_HEIMDAL_GSSAPI_PC=heimdal-gssapi
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631# AUTH_PLAINTEXT=yes
632# AUTH_SPA=yes
633
634
635#------------------------------------------------------------------------------
636# If you specified AUTH_CYRUS_SASL above, you should ensure that you have the
637# Cyrus SASL library installed before trying to build Exim, and you probably
f4b00a2d
PP
638# want to uncomment the first line below.
639# Similarly for GNU SASL, unless pkg-config is used via AUTH_GSASL_PC.
640# Ditto for AUTH_HEIMDAL_GSSAPI(_PC).
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641
642# AUTH_LIBS=-lsasl2
44bbabb5 643# AUTH_LIBS=-lgsasl
f4b00a2d 644# AUTH_LIBS=-lgssapi -lheimntlm -lkrb5 -lhx509 -lcom_err -lhcrypto -lasn1 -lwind -lroken -lcrypt
059ec3d9
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645
646
647#------------------------------------------------------------------------------
648# When Exim is decoding MIME "words" in header lines, most commonly for use
649# in the $header_xxx expansion, it converts any foreign character sets to the
650# one that is set in the headers_charset option. The default setting is
651# defined by this setting:
652
653HEADERS_CHARSET="ISO-8859-1"
654
655# If you are going to make use of $header_xxx expansions in your configuration
656# file, or if your users are going to use them in filter files, and the normal
657# character set on your host is something other than ISO-8859-1, you might
658# like to specify a different default here. This value can be overridden in
659# the runtime configuration, and it can also be overridden in individual filter
660# files.
661#
662# IMPORTANT NOTE: The iconv() function is needed for character code
663# conversions. Please see the next item...
664
665
666#------------------------------------------------------------------------------
667# Character code conversions are possible only if the iconv() function is
668# installed on your operating system. There are two places in Exim where this
669# is relevant: (a) The $header_xxx expansion (see the previous item), and (b)
670# the Sieve filter support. For those OS where iconv() is known to be installed
671# as standard, the file in OS/Makefile-xxxx contains
672#
673# HAVE_ICONV=yes
674#
675# If you are not using one of those systems, but have installed iconv(), you
676# need to uncomment that line above. In some cases, you may find that iconv()
677# and its header file are not in the default places. You might need to use
678# something like this:
679#
680# HAVE_ICONV=yes
681# CFLAGS=-O -I/usr/local/include
682# EXTRALIBS_EXIM=-L/usr/local/lib -liconv
683#
684# but of course there may need to be other things in CFLAGS and EXTRALIBS_EXIM
685# as well.
686
687
688#------------------------------------------------------------------------------
689# The passwords for user accounts are normally encrypted with the crypt()
690# function. Comparisons with encrypted passwords can be done using Exim's
691# "crypteq" expansion operator. (This is commonly used as part of the
692# configuration of an authenticator for use with SMTP AUTH.) At least one
693# operating system has an extended function called crypt16(), which uses up to
694# 16 characters of a password (the normal crypt() uses only the first 8). Exim
96c065cb 695# supports the use of crypt16() as well as crypt() but note the warning below.
059ec3d9
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696
697# You can always indicate a crypt16-encrypted password by preceding it with
698# "{crypt16}". If you want the default handling (without any preceding
699# indicator) to use crypt16(), uncomment the following line:
700
701# DEFAULT_CRYPT=crypt16
702
703# If you do that, you can still access the basic crypt() function by preceding
704# an encrypted password with "{crypt}". For more details, see the description
705# of the "crypteq" condition in the manual chapter on string expansions.
706
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707# Some operating systems do not include a crypt16() function, so Exim has one
708# of its own, which it uses unless HAVE_CRYPT16 is defined. Normally, that will
709# be set in an OS-specific Makefile for the OS that have such a function, so
710# you should not need to bother with it.
711
712# *** WARNING *** WARNING *** WARNING *** WARNING *** WARNING ***
713# It turns out that the above is not entirely accurate. As well as crypt16()
714# there is a function called bigcrypt() that some operating systems have. This
715# may or may not use the same algorithm, and both of them may be different to
716# Exim's built-in crypt16() that is used unless HAVE_CRYPT16 is defined.
717#
718# However, since there is now a move away from the traditional crypt()
719# functions towards using SHA1 and other algorithms, tidying up this area of
720# Exim is seen as very low priority. In practice, if you need to, you can
721# define DEFAULT_CRYPT to the name of any function that has the same interface
722# as the traditional crypt() function.
723# *** WARNING *** WARNING *** WARNING *** WARNING *** WARNING ***
059ec3d9
PH
724
725
726#------------------------------------------------------------------------------
727# Exim can be built to support the SMTP STARTTLS command, which implements
728# Transport Layer Security using SSL (Secure Sockets Layer). To do this, you
729# must install the OpenSSL library package or the GnuTLS library. Exim contains
730# no cryptographic code of its own. Uncomment the following lines if you want
731# to build Exim with TLS support. If you don't know what this is all about,
732# leave these settings commented out.
733
734# This setting is required for any TLS support (either OpenSSL or GnuTLS)
735# SUPPORT_TLS=yes
736
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PP
737# Uncomment one of these settings if you are using OpenSSL; pkg-config vs not
738# USE_OPENSSL_PC=openssl
059ec3d9
PH
739# TLS_LIBS=-lssl -lcrypto
740
f4b00a2d
PP
741# Uncomment the first and either the second or the third of these if you
742# are using GnuTLS. If you have pkg-config, then the second, else the third.
059ec3d9 743# USE_GNUTLS=yes
f4b00a2d 744# USE_GNUTLS_PC=gnutls
059ec3d9
PH
745# TLS_LIBS=-lgnutls -ltasn1 -lgcrypt
746
2519e60d
TL
747# The security fix we provide with the gnutls_allow_auto_pkcs11 option
748# (4.82 PP/09) introduces a compatibility regression. The symbol is
749# not available if GnuTLS is build without p11-kit (--without-p11-kit
750# configure option). In this case use AVOID_GNUTLS_PKCS11=yes when
751# building Exim.
752# AVOID_GNUTLS_PKCS11=yes
753
059ec3d9
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754# If you are running Exim as a server, note that just building it with TLS
755# support is not all you need to do. You also need to set up a suitable
756# certificate, and tell Exim about it by means of the tls_certificate
757# and tls_privatekey run time options. You also need to set tls_advertise_hosts
758# to specify the hosts to which Exim advertises TLS support. On the other hand,
759# if you are running Exim only as a client, building it with TLS support
760# is all you need to do.
761
f4b00a2d
PP
762# If you are using pkg-config then you should not need to worry where the
763# libraries and headers are installed, as the pkg-config .pc specification
764# should include all -L/-I information necessary. If not using pkg-config
765# then you might need to specify the locations too.
766
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767# Additional libraries and include files are required for both OpenSSL and
768# GnuTLS. The TLS_LIBS settings above assume that the libraries are installed
769# with all your other libraries. If they are in a special directory, you may
770# need something like
771
772# TLS_LIBS=-L/usr/local/openssl/lib -lssl -lcrypto
773# or
774# TLS_LIBS=-L/opt/gnu/lib -lgnutls -ltasn1 -lgcrypt
775
776# TLS_LIBS is included only on the command for linking Exim itself, not on any
777# auxiliary programs. If the include files are not in a standard place, you can
778# set TLS_INCLUDE to specify where they are, for example:
779
780# TLS_INCLUDE=-I/usr/local/openssl/include/
781# or
782# TLS_INCLUDE=-I/opt/gnu/include
783
784# You don't need to set TLS_INCLUDE if the relevant directories are already
785# specified in INCLUDE.
786
787
788#------------------------------------------------------------------------------
789# The default distribution of Exim contains only the plain text form of the
790# documentation. Other forms are available separately. If you want to install
791# the documentation in "info" format, first fetch the Texinfo documentation
792# sources from the ftp directory and unpack them, which should create files
793# with the extension "texinfo" in the doc directory. You may find that the
794# version number of the texinfo files is different to your Exim version number,
795# because the main documentation isn't updated as often as the code. For
796# example, if you have Exim version 4.43, the source tarball upacks into a
797# directory called exim-4.43, but the texinfo tarball unpacks into exim-4.40.
798# In this case, move the contents of exim-4.40/doc into exim-4.43/doc after you
799# have unpacked them. Then set INFO_DIRECTORY to the location of your info
800# directory. This varies from system to system, but is often /usr/share/info.
801# Once you have done this, "make install" will build the info files and
802# install them in the directory you have defined.
803
804# INFO_DIRECTORY=/usr/share/info
805
806
807#------------------------------------------------------------------------------
808# Exim log directory and files: Exim creates several log files inside a
809# single log directory. You can define the directory and the form of the
810# log file name here. If you do not set anything, Exim creates a directory
811# called "log" inside its spool directory (see SPOOL_DIRECTORY above) and uses
812# the filenames "mainlog", "paniclog", and "rejectlog". If you want to change
813# this, you can set LOG_FILE_PATH to a path name containing one occurrence of
814# %s. This will be replaced by one of the strings "main", "panic", or "reject"
815# to form the final file names. Some installations may want something like this:
816
817# LOG_FILE_PATH=/var/log/exim_%slog
818
819# which results in files with names /var/log/exim_mainlog, etc. The directory
820# in which the log files are placed must exist; Exim does not try to create
821# it for itself. It is also your responsibility to ensure that Exim is capable
822# of writing files using this path name. The Exim user (see EXIM_USER above)
823# must be able to create and update files in the directory you have specified.
824
825# You can also configure Exim to use syslog, instead of or as well as log
826# files, by settings such as these
827
828# LOG_FILE_PATH=syslog
829# LOG_FILE_PATH=syslog:/var/log/exim_%slog
830
831# The first of these uses only syslog; the second uses syslog and also writes
832# to log files. Do not include white space in such a setting as it messes up
833# the building process.
834
835
836#------------------------------------------------------------------------------
837# When logging to syslog, the following option caters for syslog replacements
838# that are able to accept log entries longer than the 1024 characters allowed
839# by RFC 3164. It is up to you to make sure your syslog daemon can handle this.
840# Non-printable characters are usually unacceptable regardless, so log entries
841# are still split on newline characters.
842
843# SYSLOG_LONG_LINES=yes
844
845# If you are not interested in the process identifier (pid) of the Exim that is
846# making the call to syslog, then comment out the following line.
847
848SYSLOG_LOG_PID=yes
849
850
851#------------------------------------------------------------------------------
852# Cycling log files: this variable specifies the maximum number of old
853# log files that are kept by the exicyclog log-cycling script. You don't have
854# to use exicyclog. If your operating system has other ways of cycling log
855# files, you can use them instead. The exicyclog script isn't run by default;
856# you have to set up a cron job for it if you want it.
857
858EXICYCLOG_MAX=10
859
860
861#------------------------------------------------------------------------------
862# The compress command is used by the exicyclog script to compress old log
863# files. Both the name of the command and the suffix that it adds to files
864# need to be defined here. See also the EXICYCLOG_MAX configuration.
865
866COMPRESS_COMMAND=/usr/bin/gzip
867COMPRESS_SUFFIX=gz
868
869
870#------------------------------------------------------------------------------
871# If the exigrep utility is fed compressed log files, it tries to uncompress
872# them using this command.
873
874ZCAT_COMMAND=/usr/bin/zcat
875
876
877#------------------------------------------------------------------------------
878# Compiling in support for embedded Perl: If you want to be able to
879# use Perl code in Exim's string manipulation language and you have Perl
880# (version 5.004 or later) installed, set EXIM_PERL to perl.o. Using embedded
881# Perl costs quite a lot of resources. Only do this if you really need it.
882
883# EXIM_PERL=perl.o
884
885
1a46a8c5
PH
886#------------------------------------------------------------------------------
887# Support for dynamically-loaded string expansion functions via ${dlfunc. If
888# you are using gcc the dynamically-loaded object must be compiled with the
889# -shared option, and you will need to add -export-dynamic to EXTRALIBS so
1ea70a03 890# that the local_scan API is made available by the linker. You may also need
612ba564 891# to add -ldl to EXTRALIBS so that dlopen() is available to Exim.
1a46a8c5
PH
892
893# EXPAND_DLFUNC=yes
894
895
059ec3d9
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896#------------------------------------------------------------------------------
897# Exim has support for PAM (Pluggable Authentication Modules), a facility
898# which is available in the latest releases of Solaris and in some GNU/Linux
899# distributions (see http://ftp.kernel.org/pub/linux/libs/pam/). The Exim
900# support, which is intended for use in conjunction with the SMTP AUTH
901# facilities, is included only when requested by the following setting:
902
903# SUPPORT_PAM=yes
904
905# You probably need to add -lpam to EXTRALIBS, and in some releases of
906# GNU/Linux -ldl is also needed.
907
908
909#------------------------------------------------------------------------------
910# Support for authentication via Radius is also available. The Exim support,
911# which is intended for use in conjunction with the SMTP AUTH facilities,
912# is included only when requested by setting the following parameter to the
913# location of your Radius configuration file:
914
915# RADIUS_CONFIG_FILE=/etc/radiusclient/radiusclient.conf
916# RADIUS_CONFIG_FILE=/etc/radius.conf
917
918# If you have set RADIUS_CONFIG_FILE, you should also set one of these to
919# indicate which RADIUS library is used:
059ec3d9
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920
921# RADIUS_LIB_TYPE=RADIUSCLIENT
7766a4f0 922# RADIUS_LIB_TYPE=RADIUSCLIENTNEW
059ec3d9
PH
923# RADIUS_LIB_TYPE=RADLIB
924
7766a4f0
PH
925# RADIUSCLIENT is the radiusclient library; you probably need to add
926# -lradiusclient to EXTRALIBS.
927#
928# The API for the radiusclient library was changed at release 0.4.0.
929# Unfortunately, the header file does not define a version number that clients
930# can use to support both the old and new APIs. If you are using version 0.4.0
931# or later of the radiusclient library, you should use RADIUSCLIENTNEW.
932#
933# RADLIB is the Radius library that comes with FreeBSD (the header file is
934# called radlib.h); you probably need to add -lradius to EXTRALIBS.
935#
936# If you do not set RADIUS_LIB_TYPE, Exim assumes the radiusclient library,
937# using the original API.
059ec3d9
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938
939
940#------------------------------------------------------------------------------
941# Support for authentication via the Cyrus SASL pwcheck daemon is available.
942# Note, however, that pwcheck is now deprecated in favour of saslauthd (see
943# next item). The Exim support for pwcheck, which is intented for use in
944# conjunction with the SMTP AUTH facilities, is included only when requested by
945# setting the following parameter to the location of the pwcheck daemon's
946# socket.
947#
948# There is no need to install all of SASL on your system. You just need to run
949# ./configure --with-pwcheck, cd to the pwcheck directory within the sources,
950# make and make install. You must create the socket directory (default
951# /var/pwcheck) and chown it to exim's user and group. Once you have installed
952# pwcheck, you should arrange for it to be started by root at boot time.
953
954# CYRUS_PWCHECK_SOCKET=/var/pwcheck/pwcheck
955
956
957#------------------------------------------------------------------------------
958# Support for authentication via the Cyrus SASL saslauthd daemon is available.
959# The Exim support, which is intented for use in conjunction with the SMTP AUTH
960# facilities, is included only when requested by setting the following
961# parameter to the location of the saslauthd daemon's socket.
962#
963# There is no need to install all of SASL on your system. You just need to run
964# ./configure --with-saslauthd (and any other options you need, for example, to
965# select or deselect authentication mechanisms), cd to the saslauthd directory
966# within the sources, make and make install. You must create the socket
967# directory (default /var/state/saslauthd) and chown it to exim's user and
968# group. Once you have installed saslauthd, you should arrange for it to be
969# started by root at boot time.
970
971# CYRUS_SASLAUTHD_SOCKET=/var/state/saslauthd/mux
972
973
974#------------------------------------------------------------------------------
975# TCP wrappers: If you want to use tcpwrappers from within Exim, uncomment
976# this setting. See the manual section entitled "Use of tcpwrappers" in the
977# chapter on building and installing Exim.
978#
979# USE_TCP_WRAPPERS=yes
980#
981# You may well also have to specify a local "include" file and an additional
982# library for TCP wrappers, so you probably need something like this:
983#
984# USE_TCP_WRAPPERS=yes
985# CFLAGS=-O -I/usr/local/include
986# EXTRALIBS_EXIM=-L/usr/local/lib -lwrap
987#
988# but of course there may need to be other things in CFLAGS and EXTRALIBS_EXIM
989# as well.
5dc43717
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990#
991# To use a name other than exim in the tcpwrappers config file,
992# e.g. if you're running multiple daemons with different access lists,
993# or multiple MTAs with the same access list, define
994# TCP_WRAPPERS_DAEMON_NAME accordingly
995#
996# TCP_WRAPPERS_DAEMON_NAME="exim"
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997
998
999#------------------------------------------------------------------------------
1000# The default action of the exim_install script (which is run by "make
1001# install") is to install the Exim binary with a unique name such as
1002# exim-4.43-1, and then set up a symbolic link called "exim" to reference it,
1003# moving the symbolic link from any previous version. If you define NO_SYMLINK
1004# (the value doesn't matter), the symbolic link is not created or moved. You
1005# will then have to "turn Exim on" by setting up the link manually.
1006
1007# NO_SYMLINK=yes
1008
1009
1010#------------------------------------------------------------------------------
1011# Another default action of the install script is to install a default runtime
1012# configuration file if one does not exist. This configuration has a router for
1013# expanding system aliases. The default assumes that these aliases are kept
1014# in the traditional file called /etc/aliases. If such a file does not exist,
1015# the installation script creates one that contains just comments (no actual
1016# aliases). The following setting can be changed to specify a different
1017# location for the system alias file.
1018
1019SYSTEM_ALIASES_FILE=/etc/aliases
1020
1021
1022#------------------------------------------------------------------------------
1023# There are some testing options (-be, -bt, -bv) that read data from the
1024# standard input when no arguments are supplied. By default, the input lines
1025# are read using the standard fgets() function. This does not support line
1026# editing during interactive input (though the terminal's "erase" character
1027# works as normal). If your operating system has the readline() function, and
1028# in addition supports dynamic loading of library functions, you can cause
1029# Exim to use readline() for the -be testing option (only) by uncommenting the
1030# following setting. Dynamic loading is used so that the library is loaded only
1031# when the -be testing option is given; by the time the loading occurs,
1032# Exim has given up its root privilege and is running as the calling user. This
1033# is the reason why readline() is NOT supported for -bt and -bv, because Exim
1034# runs as root or as exim, respectively, for those options. When USE_READLINE
1035# is "yes", as well as supporting line editing, a history of input lines in the
1036# current run is maintained.
1037
1038# USE_READLINE=yes
1039
79b5812b 1040# You may need to add -ldl to EXTRALIBS when you set USE_READLINE=yes.
b08b24c8
PH
1041# Note that this option adds to the size of the Exim binary, because the
1042# dynamic loading library is not otherwise included.
1043
059ec3d9 1044
e9eb3457
JH
1045#------------------------------------------------------------------------------
1046# Uncomment this setting to include IPv6 support.
1047
37dd1b19 1048# HAVE_IPV6=yes
059ec3d9
PH
1049
1050###############################################################################
1051# THINGS YOU ALMOST NEVER NEED TO MENTION #
1052###############################################################################
1053
1054# The settings in this section are available for use in special circumstances.
1055# In the vast majority of installations you need not change anything below.
1056
1057
1058#------------------------------------------------------------------------------
1059# The following commands live in different places in some OS. Either the
1060# ultimate default settings, or the OS-specific files should already point to
1061# the right place, but they can be overridden here if necessary. These settings
1062# are used when building various scripts to ensure that the correct paths are
1063# used when the scripts are run. They are not used in the Makefile itself. Perl
1064# is not necessary for running Exim unless you set EXIM_PERL (see above) to get
1065# it embedded, but there are some utilities that are Perl scripts. If you
1066# haven't got Perl, Exim will still build and run; you just won't be able to
1067# use those utilities.
1068
1069# CHOWN_COMMAND=/usr/bin/chown
1070# CHGRP_COMMAND=/usr/bin/chgrp
c2f9a1ee 1071# CHMOD_COMMAND=/usr/bin/chmod
059ec3d9
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1072# MV_COMMAND=/bin/mv
1073# RM_COMMAND=/bin/rm
c2f9a1ee 1074# TOUCH_COMMAND=/usr/bin/touch
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1075# PERL_COMMAND=/usr/bin/perl
1076
1077
1078#------------------------------------------------------------------------------
1079# The following macro can be used to change the command for building a library
1080# of functions. By default the "ar" command is used, with options "cq".
1081# Only in rare circumstances should you need to change this.
1082
1083# AR=ar cq
1084
1085
1086#------------------------------------------------------------------------------
1087# In some operating systems, the value of the TMPDIR environment variable
1088# controls where temporary files are created. Exim does not make use of
1089# temporary files, except when delivering to MBX mailboxes. However, if Exim
1090# calls any external libraries (e.g. DBM libraries), they may use temporary
1091# files, and thus be influenced by the value of TMPDIR. For this reason, when
1092# Exim starts, it checks the environment for TMPDIR, and if it finds it is set,
1093# it replaces the value with what is defined here. Commenting this setting
1094# suppresses the check altogether.
1095
1096TMPDIR="/tmp"
1097
1098
1099#------------------------------------------------------------------------------
1100# The following macros can be used to change the default modes that are used
1101# by the appendfile transport. In most installations the defaults are just
1102# fine, and in any case, you can change particular instances of the transport
1103# at run time if you want.
1104
1105# APPENDFILE_MODE=0600
1106# APPENDFILE_DIRECTORY_MODE=0700
1107# APPENDFILE_LOCKFILE_MODE=0600
1108
1109
1110#------------------------------------------------------------------------------
1111# In some installations there may be multiple machines sharing file systems,
1112# where a different configuration file is required for Exim on the different
1113# machines. If CONFIGURE_FILE_USE_NODE is defined, then Exim will first look
1114# for a configuration file whose name is that defined by CONFIGURE_FILE,
1115# with the node name obtained by uname() tacked on the end, separated by a
1116# period (for example, /usr/exim/configure.host.in.some.domain). If this file
1117# does not exist, then the bare configuration file name is tried.
1118
1119# CONFIGURE_FILE_USE_NODE=yes
1120
1121
1122#------------------------------------------------------------------------------
1123# In some esoteric configurations two different versions of Exim are run,
1124# with different setuid values, and different configuration files are required
1125# to handle the different cases. If CONFIGURE_FILE_USE_EUID is defined, then
1126# Exim will first look for a configuration file whose name is that defined
1127# by CONFIGURE_FILE, with the effective uid tacked on the end, separated by
1128# a period (for eximple, /usr/exim/configure.0). If this file does not exist,
1129# then the bare configuration file name is tried. In the case when both
1130# CONFIGURE_FILE_USE_EUID and CONFIGURE_FILE_USE_NODE are set, four files
1131# are tried: <name>.<euid>.<node>, <name>.<node>, <name>.<euid>, and <name>.
1132
1133# CONFIGURE_FILE_USE_EUID=yes
1134
1135
1136#------------------------------------------------------------------------------
1137# The size of the delivery buffers: These specify the sizes (in bytes) of
1138# the buffers that are used when copying a message from the spool to a
1139# destination. There is rarely any need to change these values.
1140
1141# DELIVER_IN_BUFFER_SIZE=8192
1142# DELIVER_OUT_BUFFER_SIZE=8192
1143
1144
1145#------------------------------------------------------------------------------
1146# The mode of the database directory: Exim creates a directory called "db"
1147# in its spool directory, to hold its databases of hints. This variable
1148# determines the mode of the created directory. The default value in the
1149# source is 0750.
1150
1151# EXIMDB_DIRECTORY_MODE=0750
1152
1153
1154#------------------------------------------------------------------------------
1155# Database file mode: The mode of files created in the "db" directory defaults
1156# to 0640 in the source, and can be changed here.
1157
1158# EXIMDB_MODE=0640
1159
1160
1161#------------------------------------------------------------------------------
1162# Database lock file mode: The mode of zero-length files created in the "db"
1163# directory to use for locking purposes defaults to 0640 in the source, and
1164# can be changed here.
1165
1166# EXIMDB_LOCKFILE_MODE=0640
1167
1168
1169#------------------------------------------------------------------------------
1170# This parameter sets the maximum length of the header portion of a message
1171# that Exim is prepared to process. The default setting is one megabyte. The
1172# limit exists in order to catch rogue mailers that might connect to your SMTP
1173# port, start off a header line, and then just pump junk at it for ever. The
1174# message_size_limit option would also catch this, but it may not be set.
1175# The value set here is the default; it can be changed at runtime.
1176
1177# HEADER_MAXSIZE="(1024*1024)"
1178
1179
1180#------------------------------------------------------------------------------
1181# The mode of the input directory: The input directory is where messages are
1182# kept while awaiting delivery. Exim creates it if necessary, using a mode
1183# which can be defined here (default 0750).
1184
1185# INPUT_DIRECTORY_MODE=0750
1186
1187
1188#------------------------------------------------------------------------------
1189# The mode of Exim's log directory, when it is created by Exim inside the spool
1190# directory, defaults to 0750 but can be changed here.
1191
1192# LOG_DIRECTORY_MODE=0750
1193
1194
1195#------------------------------------------------------------------------------
1196# The log files themselves are created as required, with a mode that defaults
1197# to 0640, but which can be changed here.
1198
1199# LOG_MODE=0640
1200
1201
1202#------------------------------------------------------------------------------
1203# The TESTDB lookup is for performing tests on the handling of lookup results,
1204# and is not useful for general running. It should be included only when
1205# debugging the code of Exim.
1206
1207# LOOKUP_TESTDB=yes
1208
1209
1210#------------------------------------------------------------------------------
1211# /bin/sh is used by default as the shell in which to run commands that are
1212# defined in the makefiles. This can be changed if necessary, by uncommenting
1213# this line and specifying another shell, but note that a Bourne-compatible
1214# shell is expected.
1215
1216# MAKE_SHELL=/bin/sh
1217
1218
1219#------------------------------------------------------------------------------
1220# The maximum number of named lists of each type (address, domain, host, and
1221# local part) can be increased by changing this value. It should be set to
1222# a multiple of 16.
1223
1224# MAX_NAMED_LIST=16
1225
1226
1227#------------------------------------------------------------------------------
1228# Network interfaces: Unless you set the local_interfaces option in the runtime
1229# configuration file to restrict Exim to certain interfaces only, it will run
1230# code to find all the interfaces there are on your host. Unfortunately,
1231# the call to the OS that does this requires a buffer large enough to hold
1232# data for all the interfaces - it was designed in the days when a host rarely
1233# had more than three or four interfaces. Nowadays hosts can have very many
1234# virtual interfaces running on the same hardware. If you have more than 250
1235# virtual interfaces, you will need to uncomment this setting and increase the
1236# value.
1237
1238# MAXINTERFACES=250
1239
1240
1241#------------------------------------------------------------------------------
1242# Per-message logs: While a message is in the process of being delivered,
1243# comments on its progress are written to a message log, for the benefit of
1244# human administrators. These logs are held in a directory called "msglog"
1245# in the spool directory. Its mode defaults to 0750, but can be changed here.
1246# The message log directory is also used for storing files that are used by
1247# transports for returning data to a message's sender (see the "return_output"
1248# option for transports).
1249
1250# MSGLOG_DIRECTORY_MODE=0750
1251
1252
1253#------------------------------------------------------------------------------
1254# There are three options which are used when compiling the Perl interface and
1255# when linking with Perl. The default values for these are placed automatically
1256# at the head of the Makefile by the script which builds it. However, if you
1257# want to override them, you can do so here.
1258
1259# PERL_CC=
1260# PERL_CCOPTS=
1261# PERL_LIBS=
1262
1263
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1264#------------------------------------------------------------------------------
1265# If you wish to disable valgrind in the binary, define NVALGRIND=1.
1266# This should not be needed.
1267
1268# NVALGRIND=1
1269
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1270#------------------------------------------------------------------------------
1271# Identifying the daemon: When an Exim daemon starts up, it writes its pid
1272# (process id) to a file so that it can easily be identified. The path of the
1273# file can be specified here. Some installations may want something like this:
1274
1275# PID_FILE_PATH=/var/lock/exim.pid
1276
1277# If PID_FILE_PATH is not defined, Exim writes a file in its spool directory
1278# using the name "exim-daemon.pid".
1279
1280# If you start up a daemon without the -bd option (for example, with just
1281# the -q15m option), a pid file is not written. Also, if you override the
1282# configuration file with the -oX option, no pid file is written. In other
1283# words, the pid file is written only for a "standard" daemon.
1284
1285
1286#------------------------------------------------------------------------------
1287# If Exim creates the spool directory, it is given this mode, defaulting in the
1288# source to 0750.
1289
1290# SPOOL_DIRECTORY_MODE=0750
1291
1292
1293#------------------------------------------------------------------------------
1294# The mode of files on the input spool which hold the contents of messages can
1295# be changed here. The default is 0640 so that information from the spool is
1296# available to anyone who is a member of the Exim group.
1297
1298# SPOOL_MODE=0640
1299
1300
1301#------------------------------------------------------------------------------
1302# Moving frozen messages: If the following is uncommented, Exim is compiled
1303# with support for automatically moving frozen messages out of the main spool
1304# directory, a facility that is found useful by some large installations. A
1305# run time option is required to cause the moving actually to occur. Such
1306# messages become "invisible" to the normal management tools.
1307
1308# SUPPORT_MOVE_FROZEN_MESSAGES=yes
1309
54fc8428 1310
82c6910a
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1311#------------------------------------------------------------------------------
1312# Expanding match_* second paramters: BE CAREFUL IF ENABLING THIS!
1313# It has proven too easy in practice for administrators to configure security
1314# problems into their Exim install, by treating match_domain{}{} and friends
1315# as a form of string comparison, where the second string comes from untrusted
1316# data. Because these options take lists, which can include lookup;LOOKUPDATA
1317# style elements, a foe can then cause Exim to, eg, execute an arbitrary MySQL
1318# query, dropping tables.
1319# From Exim 4.77 onwards, the second parameter is not expanded; it can still
1320# be a list literal, or a macro, or a named list reference. There is also
1321# the new expansion condition "inlisti" which does expand the second parameter,
1322# but treats it as a list of strings; also, there's "eqi" which is probably
1323# what is normally wanted.
1324#
1325# If you really need to have the old behaviour, know what you are doing and
1326# will not complain if your system is compromised as a result of doing so, then
1327# uncomment this option to get the old behaviour back.
1328
1329# EXPAND_LISTMATCH_RHS=yes
1330
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1331#------------------------------------------------------------------------------
1332# Disabling the use of fsync(): DO NOT UNCOMMENT THE FOLLOWING LINE unless you
1333# really, really, really know what you are doing. And even then, think again.
1334# You should never uncomment this when compiling a binary for distribution.
1335# Use it only when compiling Exim for your own use.
1336#
1337# Uncommenting this line enables the use of a runtime option called
1338# disable_fsync, which can be used to stop Exim using fsync() to ensure that
1339# files are written to disc before proceeding. When this is disabled, crashes
1340# and hardware problems such as power outages can cause data to be lost. This
1341# feature should only be used in very exceptional circumstances. YOU HAVE BEEN
1342# WARNED.
1343
1344# ENABLE_DISABLE_FSYNC=yes
1345
059ec3d9 1346# End of EDITME for Exim 4.