debian experimental exim-daemon-heavy config
[exim.git] / src / Local / Makefile
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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
16# called called OS/Makefile-<osname>. You can further override these by
17# creating files called Local/Makefile-<osname>, and
18# Local/Makefile-<buildname> (where "<osname>" stands for the name of
19# your operating system - look at the names in the OS directory to see
20# which names are recognized, and "<buildname>" is derived from the
21# environment variable "build")
22
23# However, if you are building Exim for a single OS only, you don't need to
24# worry about setting up Local/Makefile-<osname>. Any build-time configuration
25# settings you require can in fact be placed in the one file called
26# Local/Makefile. It is only if you are building for several OS from the same
27# source files that you need to worry about splitting off your own OS-dependent
28# settings into separate files. (There's more explanation about how this all
29# works in the toplevel README file, under "Modifying the building process", as
30# well as in the Exim specification.)
31
32# One OS-specific thing that may need to be changed is the command for running
33# the C compiler; the overall default is gcc, but some OS Makefiles specify cc.
34# You can override anything that is set by putting CC=whatever in your
35# Local/Makefile.
36
37# NOTE: You should never need to edit any of the distributed Makefiles; all
38# overriding can be done in your Local/Makefile(s). This will make it easier
39# for you when the next release comes along.
40
41# The location of the X11 libraries is something else that is quite variable
42# even between different versions of the same operating system (and indeed
43# there are different versions of X11 as well, of course). The four settings
44# concerned here are X11, XINCLUDE, XLFLAGS (linking flags) and X11_LD_LIB
45# (dynamic run-time library). You need not worry about X11 unless you want to
46# compile the Exim monitor utility. Exim itself does not use X11.
47
48# Another area of variability between systems is the type and location of the
49# DBM library package. Exim has support for ndbm, gdbm, tdb, and Berkeley DB.
50# By default the code assumes ndbm; this often works with gdbm or DB, provided
51# they are correctly installed, via their compatibility interfaces. However,
52# Exim can also be configured to use the native calls for Berkeley DB (obsolete
53# versions 1.85, 2.x, 3.x, or the current 4.x version) and also for gdbm.
54
55# For some operating systems, a default DBM library (other than ndbm) is
56# selected by a setting in the OS-specific Makefile. Most modern OS now have
57# a DBM library installed as standard, and in many cases this will be selected
58# for you by the OS-specific configuration. If Exim compiles without any
59# problems, you probably do not have to worry about the DBM library. If you
60# do want or need to change it, you should first read the discussion in the
61# file doc/dbm.discuss.txt, which also contains instructions for testing Exim's
62# interface to the DBM library.
63
64# In Local/Makefiles blank lines and lines starting with # are ignored. It is
65# also permitted to use the # character to add a comment to a setting, for
66# example
67#
68# EXIM_GID=42 # the "mail" group
69#
70# However, with some versions of "make" this works only if there is no white
71# space between the end of the setting and the #, so perhaps it is best
72# avoided. A consequence of this facility is that it is not possible to have
73# the # character present in any setting, but I can't think of any cases where
74# this would be wanted.
75###############################################################################
76
77
78
79###############################################################################
80# THESE ARE THINGS YOU MUST SPECIFY #
81###############################################################################
82
83# Exim will not build unless you specify BIN_DIRECTORY, CONFIGURE_FILE, and
84# EXIM_USER. You also need EXIM_GROUP if EXIM_USER specifies a uid by number.
85
86# If you don't specify SPOOL_DIRECTORY, Exim won't fail to build. However, it
87# really is a very good idea to specify it here rather than at run time. This
88# is particularly true if you let the logs go to their default location in the
89# spool directory, because it means that the location of the logs is known
90# before Exim has read the run time configuration file.
91
92#------------------------------------------------------------------------------
93# BIN_DIRECTORY defines where the exim binary will be installed by "make
94# install". The path is also used internally by Exim when it needs to re-invoke
95# itself, either to send an error message, or to recover root privilege. Exim's
96# utility binaries and scripts are also installed in this directory. There is
97# no "standard" place for the binary directory. Some people like to keep all
98# the Exim files under one directory such as /usr/exim; others just let the
99# Exim binaries go into an existing directory such as /usr/sbin or
100# /usr/local/sbin. The installation script will try to create this directory,
101# and any superior directories, if they do not exist.
102
103BIN_DIRECTORY=/usr/sbin
104
105
106#------------------------------------------------------------------------------
107# CONFIGURE_FILE defines where Exim's run time configuration file is to be
108# found. It is the complete pathname for the file, not just a directory. The
109# location of all other run time files and directories can be changed in the
110# run time configuration file. There is a lot of variety in the choice of
111# location in different OS, and in the preferences of different sysadmins. Some
112# common locations are in /etc or /etc/mail or /usr/local/etc or
113# /usr/local/etc/mail. Another possibility is to keep all the Exim files under
114# a single directory such as /usr/exim. Whatever you choose, the installation
115# script will try to make the directory and any superior directories if they
116# don't exist. It will also install a default runtime configuration if this
117# file does not exist.
118
119CONFIGURE_FILE=/etc/exim4/exim4.conf:/var/lib/exim4/config.autogenerated
120
121# It is possible to specify a colon-separated list of files for CONFIGURE_FILE.
122# In this case, Exim will use the first of them that exists when it is run.
123# However, if a list is specified, the installation script no longer tries to
124# make superior directories or to install a default runtime configuration.
125
126
127#------------------------------------------------------------------------------
128# The Exim binary must normally be setuid root, so that it starts executing as
129# root, but (depending on the options with which it is called) it does not
130# always need to retain the root privilege. These settings define the user and
131# group that is used for Exim processes when they no longer need to be root. In
132# particular, this applies when receiving messages and when doing remote
133# deliveries. (Local deliveries run as various non-root users, typically as the
134# owner of a local mailbox.) Specifying these values as root is not supported.
135
136EXIM_USER=ref:Debian-exim
137
138# If you specify EXIM_USER as a name, this is looked up at build time, and the
139# uid number is built into the binary. However, you can specify that this
140# lookup is deferred until runtime. In this case, it is the name that is built
141# into the binary. You can do this by a setting of the form:
142
143# EXIM_USER=ref:exim
144
145# In other words, put "ref:" in front of the user name. If you set EXIM_USER
146# like this, any value specified for EXIM_GROUP is also passed "by reference".
147# Although this costs a bit of resource at runtime, it is convenient to use
148# this feature when building binaries that are to be run on multiple systems
149# where the name may refer to different uids. It also allows you to build Exim
150# on a system where there is no Exim user defined.
151
152# If the setting of EXIM_USER is numeric (e.g. EXIM_USER=42), there must
153# also be a setting of EXIM_GROUP. If, on the other hand, you use a name
154# for EXIM_USER (e.g. EXIM_USER=exim), you don't need to set EXIM_GROUP unless
155# you want to use a group other than the default group for the given user.
156
157# EXIM_GROUP=
158EXIM_GROUP=ref:Debian-exim
159
160# Many sites define a user called "exim", with an appropriate default group,
161# and use
162#
163# EXIM_USER=exim
164#
165# while leaving EXIM_GROUP unspecified (commented out).
166
167
168#------------------------------------------------------------------------------
169# SPOOL_DIRECTORY defines the directory where all the data for messages in
170# transit is kept. It is strongly recommended that you define it here, though
171# it is possible to leave this till the run time configuration.
172
173# Exim creates the spool directory if it does not exist. The owner and group
174# will be those defined by EXIM_USER and EXIM_GROUP, and this also applies to
175# all the files and directories that are created in the spool directory.
176
177# Almost all installations choose this:
178
179SPOOL_DIRECTORY=/var/spool/exim4
180
181
182
183###############################################################################
184# TLS #
185###############################################################################
186# Exim is built by default to support the SMTP STARTTLS command, which implements
187# Transport Layer Security using SSL (Secure Sockets Layer). This requires you
188# must install the OpenSSL library package or the GnuTLS library. Exim contains
189# no cryptographic code of its own.
190
191# If you are running Exim as a (TLS) server, just building it with TLS support
192# is all you need to do, as tls_advertise_hosts is set to '*' by
193# default. But you are advised to create a suiteable certificate, and tell
194# Exim about it by means of the tls_certificate and tls_privatekey run
195# time options, otherwise Exim will create a self signed certificate on
196# the fly. If you are running Exim only as a (TLS) client, building it with
197# TLS support is all you need to do.
198#
199# If you are using pkg-config then you should not need to worry where
200# the libraries and headers are installed, as the pkg-config .pc
201# specification should include all -L/-I information necessary.
202# Enabling the USE_*_PC options should be sufficient. If not using
203# pkg-config, then you have to specify the libraries, and you mmight
204# need to specify the locations too.
205
206# Uncomment the following lines if you want
207# to build Exim without any TLS support (either OpenSSL or GnuTLS):
208# DISABLE_TLS=yes
209# Unless you do this, you must define one of USE_OPENSSL or USE_GNUTLS
210# below.
211
212# If you are buliding with TLS, the library configuration must be done:
213
214# Uncomment this if you are using OpenSSL
215# USE_OPENSSL=yes
216# Uncomment one of these settings if you are using OpenSSL; pkg-config vs not
217# and an optional location.
218# USE_OPENSSL_PC=openssl
219# TLS_LIBS=-lssl -lcrypto
220# TLS_LIBS=-L/usr/local/openssl/lib -lssl -lcrypto
221
222# Uncomment this if you are using GnuTLS
223USE_GNUTLS=yes
224# Uncomment one of these settings if you are using GnuTLS; pkg-config vs not
225# and an optional location. If you disable SUPPORT_DANE below, you
226# can remove the gnutls-dane references here. Earlier versions of GnuTLS
227# required libtasn1 and libgrypt also; add if needed.
228# USE_GNUTLS_PC=gnutls gnutls-dane
229TLS_LIBS=-lgnutls -lgnutls-dane
230# TLS_LIBS=-L/usr/local/gnu/lib -lgnutls -ltasn1 -lgcrypt -lgnutls-dane
231
232# If using GnuTLS older than 2.10 and using pkg-config then note that Exim's
233# build process will require libgcrypt-config to exist in your $PATH. A
234# version that old is likely to become unsupported by Exim in 2017.
235
236# The security fix we provide with the gnutls_allow_auto_pkcs11 option
237# (4.82 PP/09) introduces a compatibility regression. The symbol is
238# not available if GnuTLS is build without p11-kit (--without-p11-kit
239# configure option). In this case use AVOID_GNUTLS_PKCS11=yes when
240# building Exim.
241# AVOID_GNUTLS_PKCS11=yes
242
243# If you are running Exim as a server, note that just building it with TLS
244# support is not all you need to do. You also need to set up a suitable
245# certificate, and tell Exim about it by means of the tls_certificate
246# and tls_privatekey run time options. You also need to set tls_advertise_hosts
247# to specify the hosts to which Exim advertises TLS support. On the other hand,
248# if you are running Exim only as a client, building it with TLS support
249# is all you need to do.
250
251# If you are using pkg-config then you should not need to worry where the
252# libraries and headers are installed, as the pkg-config .pc specification
253# should include all -L/-I information necessary. If not using pkg-config
254# then you might need to specify the locations too.
255
256# Additional libraries and include files are required for both OpenSSL and
257# GnuTLS. The TLS_LIBS settings above assume that the libraries are installed
258# with all your other libraries. If they are in a special directory, you may
259# need something like
260
261# TLS_LIBS=-L/usr/local/openssl/lib -lssl -lcrypto
262
263# or
264
265# TLS_LIBS=-L/opt/gnu/lib -lgnutls -ltasn1 -lgcrypt -lgnutls-dane
266# If not using DANE under GnuTLS we can lose one library
267# TLS_LIBS=-L/opt/gnu/lib -lgnutls -ltasn1 -lgcrypt
268
269# TLS_LIBS is included only on the command for linking Exim itself, not on any
270# auxiliary programs. If the include files are not in a standard place, you can
271# set TLS_INCLUDE to specify where they are, for example:
272
273# TLS_INCLUDE=-I/usr/local/openssl/include/
274# or
275# TLS_INCLUDE=-I/opt/gnu/include
276
277# You don't need to set TLS_INCLUDE if the relevant directories are already
278# specified in INCLUDE.
279
280
281
282###############################################################################
283# THESE ARE THINGS YOU PROBABLY WANT TO SPECIFY #
284###############################################################################
285
286# If you need extra header file search paths on all compiles, put the -I
287# options in INCLUDE. If you want the extra searches only for certain
288# parts of the build, see more specific xxx_INCLUDE variables below.
289
290# INCLUDE=-I/example/include
291
292# You need to specify some routers and transports if you want the Exim that you
293# are building to be capable of delivering mail. You almost certainly need at
294# least one type of lookup. You should consider whether you want to build
295# the Exim monitor or not.
296
297# If you need to override how pkg-config finds configuration files for
298# installed software, then you can set that here; wildcards will be expanded.
299
300# PKG_CONFIG_PATH=/usr/local/opt/openssl/lib/pkgconfig : /opt/*/lib/pkgconfig
301
302
303#------------------------------------------------------------------------------
304# These settings determine which individual router drivers are included in the
305# Exim binary. There are no defaults in the code; those routers that are wanted
306# must be defined here by setting the appropriate variables to the value "yes".
307# Including a router in the binary does not cause it to be used automatically.
308# It has also to be configured in the run time configuration file. By
309# commenting out those you know you don't want to use, you can make the binary
310# a bit smaller. If you are unsure, leave all of these included for now.
311
312ROUTER_ACCEPT=yes
313ROUTER_DNSLOOKUP=yes
314ROUTER_IPLITERAL=yes
315ROUTER_MANUALROUTE=yes
316ROUTER_QUERYPROGRAM=yes
317ROUTER_REDIRECT=yes
318
319# This one is very special-purpose, so is not included by default.
320
321ROUTER_IPLOOKUP=yes
322
323
324#------------------------------------------------------------------------------
325# These settings determine which individual transport drivers are included in
326# the Exim binary. There are no defaults; those transports that are wanted must
327# be defined here by setting the appropriate variables to the value "yes".
328# Including a transport in the binary does not cause it to be used
329# automatically. It has also to be configured in the run time configuration
330# file. By commenting out those you know you don't want to use, you can make
331# the binary a bit smaller. If you are unsure, leave all of these included for
332# now.
333
334TRANSPORT_APPENDFILE=yes
335TRANSPORT_AUTOREPLY=yes
336TRANSPORT_PIPE=yes
337TRANSPORT_SMTP=yes
338
339# This one is special-purpose, and commonly not required, so it is not
340# included by default.
341
342TRANSPORT_LMTP=yes
343
344
345#------------------------------------------------------------------------------
346# The appendfile transport can write messages to local mailboxes in a number
347# of formats. The code for three specialist formats, maildir, mailstore, and
348# MBX, is included only when requested. If you do not know what this is about,
349# leave these settings commented out.
350
351SUPPORT_MAILDIR=yes
352SUPPORT_MAILSTORE=yes
353SUPPORT_MBX=yes
354
355
356#------------------------------------------------------------------------------
357# See below for dynamic lookup modules.
358#
359# If not using package management but using this anyway, then think about how
360# you perform upgrades and revert them. You should consider the benefit of
361# embedding the Exim version number into LOOKUP_MODULE_DIR, so that you can
362# maintain two concurrent sets of modules.
363#
364# *BEWARE*: ability to modify the files in LOOKUP_MODULE_DIR is equivalent to
365# the ability to modify the Exim binary, which is often setuid root! The Exim
366# developers only intend this functionality be used by OS software packagers
367# and we suggest that such packagings' integrity checks should be paranoid
368# about the permissions of the directory and the files within.
369
370# LOOKUP_MODULE_DIR=/usr/lib/exim/lookups/
371
372# To build a module dynamically, you'll need to define CFLAGS_DYNAMIC for
373# your platform. Eg:
374# CFLAGS_DYNAMIC=-shared -rdynamic
375# CFLAGS_DYNAMIC=-shared -rdynamic -fPIC
376
377#------------------------------------------------------------------------------
378# These settings determine which file and database lookup methods are included
379# in the binary. See the manual chapter entitled "File and database lookups"
380# for discussion. DBM and lsearch (linear search) are included by default. If
381# you are unsure about the others, leave them commented out for now.
382# LOOKUP_DNSDB does *not* refer to general mail routing using the DNS. It is
383# for the specialist case of using the DNS as a general database facility (not
384# common).
385# If set to "2" instead of "yes" then the corresponding lookup will be
386# built as a module and must be installed into LOOKUP_MODULE_DIR. You need to
387# add -export-dynamic -rdynamic to EXTRALIBS. You may also need to add -ldl to
388# EXTRALIBS so that dlopen() is available to Exim. You need to define
389# LOOKUP_MODULE_DIR above so the exim binary actually loads dynamic lookup
390# modules.
391# Also, instead of adding all the libraries/includes to LOOKUP_INCLUDE and
392# LOOKUP_LIBS, add them to the respective LOOKUP_*_INCLUDE and LOOKUP_*_LIBS
393# (where * is the name as given here in this list). That ensures that only
394# the dynamic library and not the exim binary will be linked against the
395# library.
396# NOTE: LDAP cannot be built as a module!
397#
398# For Redis you need to have hiredis installed on your system
399# (https://github.com/redis/hiredis).
400# Depending on where it is installed you may have to edit the CFLAGS
401# (often += -I/usr/local/include) and LDFLAGS (-lhiredis) lines.
402
403# If your system has pkg-config then the _INCLUDE/_LIBS setting can be
404# handled for you automatically by also defining the _PC variable to reference
405# the name of the pkg-config package, if such is available.
406
407LOOKUP_DBM=yes
408LOOKUP_LSEARCH=yes
409LOOKUP_DNSDB=yes
410
411LOOKUP_CDB=yes
412LOOKUP_DSEARCH=yes
413# LOOKUP_IBASE=yes
414# LOOKUP_JSON=yes
415LOOKUP_LDAP=yes
416LOOKUP_MYSQL=yes
417# LOOKUP_MYSQL_PC=mariadb
418LOOKUP_NIS=yes
419# LOOKUP_NISPLUS=yes
420# LOOKUP_ORACLE=yes
421LOOKUP_PASSWD=yes
422LOOKUP_PGSQL=yes
423# LOOKUP_REDIS=yes
424LOOKUP_SQLITE=yes
425# LOOKUP_SQLITE_PC=sqlite3
426# LOOKUP_WHOSON=yes
427
428# These two settings are obsolete; all three lookups are compiled when
429# LOOKUP_LSEARCH is enabled. However, we retain these for backward
430# compatibility. Setting one forces LOOKUP_LSEARCH if it is not set.
431
432# LOOKUP_WILDLSEARCH=yes
433# LOOKUP_NWILDLSEARCH=yes
434
435
436# Some platforms may need this for LOOKUP_NIS:
437LIBS += -lnsl
438
439#------------------------------------------------------------------------------
440# If you have set LOOKUP_LDAP=yes, you should set LDAP_LIB_TYPE to indicate
441# which LDAP library you have. Unfortunately, though most of their functions
442# are the same, there are minor differences. Currently Exim knows about four
443# LDAP libraries: the one from the University of Michigan (also known as
444# OpenLDAP 1), OpenLDAP 2, the Netscape SDK library, and the library that comes
445# with Solaris 7 onwards. Uncomment whichever of these you are using.
446
447# LDAP_LIB_TYPE=OPENLDAP1
448LDAP_LIB_TYPE=OPENLDAP2
449# LDAP_LIB_TYPE=NETSCAPE
450# LDAP_LIB_TYPE=SOLARIS
451
452# If you don't set any of these, Exim assumes the original University of
453# Michigan (OpenLDAP 1) library.
454
455
456#------------------------------------------------------------------------------
457# The PCRE library is required for Exim. There is no longer an embedded
458# version of the PCRE library included with the source code, instead you
459# must use a system library or build your own copy of PCRE.
460# In either case you must specify the library link info here. If the
461# PCRE header files are not in the standard search path you must also
462# modify the INCLUDE path (above)
463#
464# Use PCRE_CONFIG to query the pcre-config command (first found in $PATH)
465# to find the include files and libraries, else use PCRE_LIBS and set INCLUDE
466# too if needed.
467
468PCRE_CONFIG=yes
469# PCRE_LIBS=-lpcre
470
471
472#------------------------------------------------------------------------------
473# Comment out the following line to remove DANE support
474# Note: Enabling this unconditionally overrides DISABLE_DNSSEC
475# forces you to have SUPPORT_TLS enabled (the default). For DANE under
476# GnuTLS we need an additional library. See TLS_LIBS or USE_GNUTLS_PC
477# below.
478SUPPORT_DANE=yes
479
480#------------------------------------------------------------------------------
481# Additional libraries and include directories may be required for some
482# lookup styles (e.g. LDAP, MYSQL or PGSQL). LOOKUP_LIBS is included only on
483# the command for linking Exim itself, not on any auxiliary programs. You
484# don't need to set LOOKUP_INCLUDE if the relevant directories are already
485# specified in INCLUDE. The settings below are just examples; -lpq is for
486# PostgreSQL, -lgds is for Interbase, -lsqlite3 is for SQLite, -lhiredis
487# is for Redis, -ljansson for JSON.
488#
489# You do not need to use this for any lookup information added via pkg-config.
490
491# LOOKUP_INCLUDE=-I /usr/local/ldap/include -I /usr/local/mysql/include -I /usr/local/pgsql/include
492# LOOKUP_LIBS=-L/usr/local/lib -lldap -llber -lmysqlclient -lpq -lgds -lsqlite3
493
494
495LOOKUP_INCLUDE=-I/usr/include/mysql -I`pg_config --includedir`
496LOOKUP_LIBS=-lldap -llber -lmysqlclient -lpq -lsqlite3
497
498#------------------------------------------------------------------------------
499# Compiling the Exim monitor: If you want to compile the Exim monitor, a
500# program that requires an X11 display, then EXIM_MONITOR should be set to the
501# value "eximon.bin". De-comment this setting to enable compilation of the
502# monitor. The locations of various X11 directories for libraries and include
503# files are defaulted in the OS/Makefile-Default file, but can be overridden in
504# local OS-specific make files.
505
506# EXIM_MONITOR=eximon.bin
507
508
509#------------------------------------------------------------------------------
510# Compiling Exim with content scanning support: If you want to compile Exim
511# with support for message body content scanning, set WITH_CONTENT_SCAN to
512# the value "yes". This will give you malware and spam scanning in the DATA ACL,
513# and the MIME ACL. Please read the documentation to learn more about these
514# features.
515
516WITH_CONTENT_SCAN=yes
517
518# If you have content scanning you may wish to only include some of the scanner
519# interfaces. Uncomment any of these lines to remove that code.
520
521# DISABLE_MAL_FFROTD=yes
522# DISABLE_MAL_FFROT6D=yes
523# DISABLE_MAL_DRWEB=yes
524# DISABLE_MAL_FSECURE=yes
525# DISABLE_MAL_SOPHIE=yes
526# DISABLE_MAL_CLAM=yes
527# DISABLE_MAL_AVAST=yes
528# DISABLE_MAL_SOCK=yes
529# DISABLE_MAL_CMDLINE=yes
530
531# These scanners are claimed to be no longer existent.
532
533DISABLE_MAL_AVE=yes
534DISABLE_MAL_KAV=yes
535DISABLE_MAL_MKS=yes
536
537
538#------------------------------------------------------------------------------
539# If built with TLS, Exim includes code to support DKIM (DomainKeys Identified
540# Mail, RFC4871) signing and verification. Verification of signatures is
541# turned on by default. See the spec for information on conditionally
542# disabling it. To disable the inclusion of the entire feature, set
543# DISABLE_DKIM to "yes"
544
545# DISABLE_DKIM=yes
546
547#------------------------------------------------------------------------------
548# Uncomment the following line to remove Per-Recipient-Data-Response support.
549
550# DISABLE_PRDR=yes
551
552#------------------------------------------------------------------------------
553# Uncomment the following line to remove OCSP stapling support in TLS,
554# from Exim. Note it can only be supported when built with
555# GnuTLS 3.1.3 or later, or OpenSSL
556
557# DISABLE_OCSP=yes
558
559#------------------------------------------------------------------------------
560# By default, Exim has support for checking the AD bit in a DNS response, to
561# determine if DNSSEC validation was successful. If your system libraries
562# do not support that bit, then set DISABLE_DNSSEC to "yes"
563# Note: Enabling SUPPORT_DANE unconditionally overrides this setting.
564
565# DISABLE_DNSSEC=yes
566
567# To disable support for Events set DISABLE_EVENT to "yes"
568
569# DISABLE_EVENT=yes
570
571
572# Uncomment this line to include support for early pipelining, per
573# https://datatracker.ietf.org/doc/draft-harris-early-pipe/
574# SUPPORT_PIPE_CONNECT=yes
575
576
577#------------------------------------------------------------------------------
578# Compiling Exim with experimental features. These are documented in
579# experimental-spec.txt. "Experimental" means that the way these features are
580# implemented may still change. Backward compatibility is not guaranteed.
581
582# Uncomment the following line to add support for talking to dccifd. This
583# defaults the socket path to /usr/local/dcc/var/dccifd.
584# Doing so will also explicitly turn on the WITH_CONTENT_SCAN option.
585
586# EXPERIMENTAL_DCC=yes
587
588# Uncomment the following lines to add SRS (Sender rewriting scheme) support.
589# You need to have libsrs_alt installed on your system (srs.mirtol.com).
590# Depending on where it is installed you may have to edit the CFLAGS and
591# LDFLAGS lines.
592
593# EXPERIMENTAL_SRS=yes
594# CFLAGS += -I/usr/local/include
595# LDFLAGS += -lsrs_alt
596
597# Uncomment the following lines to add SRS (Sender rewriting scheme) support
598# using only native facilities.
599# EXPERIMENTAL_SRS_NATIVE=yes
600
601# Uncomment the following line to add DMARC checking capability, implemented
602# using libopendmarc libraries. You must have SPF and DKIM support enabled also.
603# SUPPORT_DMARC=yes
604# CFLAGS += -I/usr/local/include
605# LDFLAGS += -lopendmarc
606# Uncomment the following if you need to change the default. You can
607# override it at runtime (main config option dmarc_tld_file)
608# DMARC_TLD_FILE=/etc/exim/opendmarc.tlds
609
610# Uncomment the following line to add ARC (Authenticated Received Chain)
611# support. You must have SPF and DKIM support enabled also.
612# EXPERIMENTAL_ARC=yes
613
614# Uncomment the following lines to add Brightmail AntiSpam support. You need
615# to have the Brightmail client SDK installed. Please check the experimental
616# documentation for implementation details. You need to edit the CFLAGS and
617# LDFLAGS lines.
618
619# EXPERIMENTAL_BRIGHTMAIL=yes
620# CFLAGS += -I/opt/brightmail/bsdk-6.0/include
621# LDFLAGS += -lxml2_single -lbmiclient_single -L/opt/brightmail/bsdk-6.0/lib
622
623# Uncomment the following to include extra information in fail DSN message (bounces)
624# EXPERIMENTAL_DSN_INFO=yes
625
626# Uncomment the following to add LMDB lookup support
627# You need to have LMDB installed on your system (https://github.com/LMDB/lmdb)
628# Depending on where it is installed you may have to edit the CFLAGS and LDFLAGS lines.
629# EXPERIMENTAL_LMDB=yes
630# CFLAGS += -I/usr/local/include
631# LDFLAGS += -llmdb
632
633# Uncomment the following line to add queuefile transport support
634# EXPERIMENTAL_QUEUEFILE=yes
635
636# Uncomment the following line to include support for TLS Resumption
637# EXPERIMENTAL_TLS_RESUME=yes
638
639# Uncomment the following to include the fast-ramp two-phase-queue-run support
640# EXPERIMENTAL_QUEUE_RAMP=yes
641
642###############################################################################
643# THESE ARE THINGS YOU MIGHT WANT TO SPECIFY #
644###############################################################################
645
646# The items in this section are those that are commonly changed according to
647# the sysadmin's preferences, but whose defaults are often acceptable. The
648# first five are concerned with security issues, where differing levels of
649# paranoia are appropriate in different environments. Sysadmins also vary in
650# their views on appropriate levels of defence in these areas. If you do not
651# understand these issues, go with the defaults, which are used by many sites.
652
653
654#------------------------------------------------------------------------------
655# Although Exim is normally a setuid program, owned by root, it refuses to run
656# local deliveries as root by default. There is a runtime option called
657# "never_users" which lists the users that must never be used for local
658# deliveries. There is also the setting below, which provides a list that
659# cannot be overridden at runtime. This guards against problems caused by
660# unauthorized changes to the runtime configuration. You are advised not to
661# remove "root" from this option, but you can add other users if you want. The
662# list is colon-separated. It must NOT contain any spaces.
663
664# FIXED_NEVER_USERS=root:bin:daemon
665FIXED_NEVER_USERS=root
666
667
668#------------------------------------------------------------------------------
669# By default, Exim insists that its configuration file be owned by root. You
670# can specify one additional permitted owner here.
671
672# CONFIGURE_OWNER=
673
674# If the configuration file is group-writeable, Exim insists by default that it
675# is owned by root. You can specify one additional permitted group owner here.
676
677# CONFIGURE_GROUP=
678
679# If you specify CONFIGURE_OWNER or CONFIGURE_GROUP as a name, this is looked
680# up at build time, and the uid or gid number is built into the binary.
681# However, you can specify that the lookup is deferred until runtime. In this
682# case, it is the name that is built into the binary. You can do this by a
683# setting of the form:
684
685# CONFIGURE_OWNER=ref:mail
686# CONFIGURE_GROUP=ref:sysadmin
687
688# In other words, put "ref:" in front of the user or group name. Although this
689# costs a bit of resource at runtime, it is convenient to use this feature when
690# building binaries that are to be run on multiple systems where the names may
691# refer to different uids or gids. It also allows you to build Exim on a system
692# where the relevant user or group is not defined.
693
694
695#------------------------------------------------------------------------------
696# The -C option allows Exim to be run with an alternate runtime configuration
697# file. When this is used by root, root privilege is retained by the binary
698# (for any other caller including the Exim user, it is dropped). You can
699# restrict the location of alternate configurations by defining a prefix below.
700# Any file used with -C must then start with this prefix (except that /dev/null
701# is also permitted if the caller is root, because that is used in the install
702# script). If the prefix specifies a directory that is owned by root, a
703# compromise of the Exim account does not permit arbitrary alternate
704# configurations to be used. The prefix can be more restrictive than just a
705# directory (the second example).
706
707# ALT_CONFIG_PREFIX=/some/directory/
708# ALT_CONFIG_PREFIX=/some/directory/exim.conf-
709
710
711#------------------------------------------------------------------------------
712# When a user other than root uses the -C option to override the configuration
713# file (including the Exim user when re-executing Exim to regain root
714# privileges for local message delivery), this will normally cause Exim to
715# drop root privileges. The TRUSTED_CONFIG_LIST option, specifies a file which
716# contains a list of trusted configuration filenames, one per line. If the -C
717# option is used by the Exim user or by the user specified in the
718# CONFIGURE_OWNER setting, to specify a configuration file which is listed in
719# the TRUSTED_CONFIG_LIST file, then root privileges are not dropped by Exim.
720
721TRUSTED_CONFIG_LIST=/etc/exim4/trusted_configs
722
723
724#------------------------------------------------------------------------------
725# Uncommenting this option disables the use of the -D command line option,
726# which changes the values of macros in the runtime configuration file.
727# This is another protection against somebody breaking into the Exim account.
728
729# DISABLE_D_OPTION=yes
730
731
732#------------------------------------------------------------------------------
733# By contrast, you might be maintaining a system which relies upon the ability
734# to override values with -D and assumes that these will be passed through to
735# the delivery processes. As of Exim 4.73, this is no longer the case by
736# default. Going forward, we strongly recommend that you use a shim Exim
737# configuration file owned by root stored under TRUSTED_CONFIG_LIST.
738# That shim can set macros before .include'ing your main configuration file.
739#
740# As a strictly transient measure to ease migration to 4.73, the
741# WHITELIST_D_MACROS value defines a colon-separated list of macro-names
742# which are permitted to be overridden from the command-line which will be
743# honoured by the Exim user. So these are macros that can persist to delivery
744# time.
745# Examples might be -DTLS or -DSPOOL=/some/dir. The values on the
746# command-line are filtered to only permit: [A-Za-z0-9_/.-]*
747#
748# This option is highly likely to be removed in a future release. It exists
749# only to make 4.73 as easy as possible to migrate to. If you use it, we
750# encourage you to schedule time to rework your configuration to not depend
751# upon it. Most people should not need to use this.
752#
753# By default, no macros are whitelisted for -D usage.
754
755# WHITELIST_D_MACROS=TLS:SPOOL
756
757# Mailscanner uses -DOUTGOING.
758WHITELIST_D_MACROS=OUTGOING
759
760#------------------------------------------------------------------------------
761# Exim has support for the AUTH (authentication) extension of the SMTP
762# protocol, as defined by RFC 2554. If you don't know what SMTP authentication
763# is, you probably won't want to include this code, so you should leave these
764# settings commented out. If you do want to make use of SMTP authentication,
765# you must uncomment at least one of the following, so that appropriate code is
766# included in the Exim binary. You will then need to set up the run time
767# configuration to make use of the mechanism(s) selected.
768
769AUTH_CRAM_MD5=yes
770AUTH_CYRUS_SASL=yes
771AUTH_DOVECOT=yes
772# AUTH_EXTERNAL=yes
773# AUTH_GSASL=yes
774# AUTH_GSASL_PC=libgsasl
775# AUTH_HEIMDAL_GSSAPI=yes
776# AUTH_HEIMDAL_GSSAPI_PC=heimdal-gssapi
777# AUTH_HEIMDAL_GSSAPI_PC=heimdal-gssapi heimdal-krb5
778AUTH_PLAINTEXT=yes
779AUTH_SPA=yes
780AUTH_TLS=yes
781
782# Heimdal through 1.5 required pkg-config 'heimdal-gssapi'; Heimdal 7.1
783# requires multiple pkg-config files to work with Exim, so the second example
784# above is needed.
785
786#------------------------------------------------------------------------------
787# If you specified AUTH_CYRUS_SASL above, you should ensure that you have the
788# Cyrus SASL library installed before trying to build Exim, and you probably
789# want to uncomment the first line below.
790# Similarly for GNU SASL, unless pkg-config is used via AUTH_GSASL_PC.
791# Ditto for AUTH_HEIMDAL_GSSAPI(_PC).
792
793AUTH_LIBS=-lsasl2
794# AUTH_LIBS=-lgsasl
795# AUTH_LIBS=-lgssapi -lheimntlm -lkrb5 -lhx509 -lcom_err -lhcrypto -lasn1 -lwind -lroken -lcrypt
796
797# If using AUTH_GSASL with SCRAM methods, you should also be defining
798# SUPPORT_I18N to get standards-conformant support of utf8 normalization.
799
800
801#------------------------------------------------------------------------------
802# When Exim is decoding MIME "words" in header lines, most commonly for use
803# in the $header_xxx expansion, it converts any foreign character sets to the
804# one that is set in the headers_charset option. The default setting is
805# defined by this setting:
806
807HEADERS_CHARSET="UTF-8"
808
809# If you are going to make use of $header_xxx expansions in your configuration
810# file, or if your users are going to use them in filter files, and the normal
811# character set on your host is something other than ISO-8859-1, you might
812# like to specify a different default here. This value can be overridden in
813# the runtime configuration, and it can also be overridden in individual filter
814# files.
815#
816# IMPORTANT NOTE: The iconv() function is needed for character code
817# conversions. Please see the next item...
818
819
820#------------------------------------------------------------------------------
821# Character code conversions are possible only if the iconv() function is
822# installed on your operating system. There are two places in Exim where this
823# is relevant: (a) The $header_xxx expansion (see the previous item), and (b)
824# the Sieve filter support. For those OS where iconv() is known to be installed
825# as standard, the file in OS/Makefile-xxxx contains
826#
827# HAVE_ICONV=yes
828#
829# If you are not using one of those systems, but have installed iconv(), you
830# need to uncomment that line above. In some cases, you may find that iconv()
831# and its header file are not in the default places. You might need to use
832# something like this:
833#
834# HAVE_ICONV=yes
835# CFLAGS=-O -I/usr/local/include
836# EXTRALIBS_EXIM=-L/usr/local/lib -liconv
837#
838# but of course there may need to be other things in CFLAGS and EXTRALIBS_EXIM
839# as well.
840#
841# nb: FreeBSD as of 4.89 defines LIBICONV_PLUG to pick up the system iconv
842# more reliably. If you explicitly want the libiconv Port then as well
843# as adding -liconv you'll want to unset LIBICONV_PLUG. If you actually need
844# this, let us know, but for now the Exim Maintainers are assuming that this
845# is uncommon and so you'll need to edit OS/os.h-FreeBSD yourself to remove
846# the define.
847
848
849#------------------------------------------------------------------------------
850# The passwords for user accounts are normally encrypted with the crypt()
851# function. Comparisons with encrypted passwords can be done using Exim's
852# "crypteq" expansion operator. (This is commonly used as part of the
853# configuration of an authenticator for use with SMTP AUTH.) At least one
854# operating system has an extended function called crypt16(), which uses up to
855# 16 characters of a password (the normal crypt() uses only the first 8). Exim
856# supports the use of crypt16() as well as crypt() but note the warning below.
857
858# You can always indicate a crypt16-encrypted password by preceding it with
859# "{crypt16}". If you want the default handling (without any preceding
860# indicator) to use crypt16(), uncomment the following line:
861
862# DEFAULT_CRYPT=crypt16
863
864# If you do that, you can still access the basic crypt() function by preceding
865# an encrypted password with "{crypt}". For more details, see the description
866# of the "crypteq" condition in the manual chapter on string expansions.
867
868# Some operating systems do not include a crypt16() function, so Exim has one
869# of its own, which it uses unless HAVE_CRYPT16 is defined. Normally, that will
870# be set in an OS-specific Makefile for the OS that have such a function, so
871# you should not need to bother with it.
872
873# *** WARNING *** WARNING *** WARNING *** WARNING *** WARNING ***
874# It turns out that the above is not entirely accurate. As well as crypt16()
875# there is a function called bigcrypt() that some operating systems have. This
876# may or may not use the same algorithm, and both of them may be different to
877# Exim's built-in crypt16() that is used unless HAVE_CRYPT16 is defined.
878#
879# However, since there is now a move away from the traditional crypt()
880# functions towards using SHA1 and other algorithms, tidying up this area of
881# Exim is seen as very low priority. In practice, if you need to, you can
882# define DEFAULT_CRYPT to the name of any function that has the same interface
883# as the traditional crypt() function.
884# *** WARNING *** WARNING *** WARNING *** WARNING *** WARNING ***
885
886
887#------------------------------------------------------------------------------
888# On systems which support dynamic loading of shared libraries, Exim can
889# load a local_scan function specified in its config file instead of having
890# to be recompiled with the desired local_scan function. For a full
891# description of the API to this function, see the Exim specification.
892
893DLOPEN_LOCAL_SCAN=yes
894HAVE_LOCAL_SCAN=yes
895
896# If you set DLOPEN_LOCAL_SCAN, then you need to include -rdynamic in the
897# linker flags. Without it, the loaded .so won't be able to access any
898# functions from exim.
899
900LDFLAGS += -rdynamic
901CFLAGS += -fvisibility=hidden
902
903#------------------------------------------------------------------------------
904# The default distribution of Exim contains only the plain text form of the
905# documentation. Other forms are available separately. If you want to install
906# the documentation in "info" format, first fetch the Texinfo documentation
907# sources from the ftp directory and unpack them, which should create files
908# with the extension "texinfo" in the doc directory. You may find that the
909# version number of the texinfo files is different to your Exim version number,
910# because the main documentation isn't updated as often as the code. For
911# example, if you have Exim version 4.43, the source tarball unpacks into a
912# directory called exim-4.43, but the texinfo tarball unpacks into exim-4.40.
913# In this case, move the contents of exim-4.40/doc into exim-4.43/doc after you
914# have unpacked them. Then set INFO_DIRECTORY to the location of your info
915# directory. This varies from system to system, but is often /usr/share/info.
916# Once you have done this, "make install" will build the info files and
917# install them in the directory you have defined.
918
919# INFO_DIRECTORY=/usr/share/info
920
921
922#------------------------------------------------------------------------------
923# Exim log directory and files: Exim creates several log files inside a
924# single log directory. You can define the directory and the form of the
925# log file name here. If you do not set anything, Exim creates a directory
926# called "log" inside its spool directory (see SPOOL_DIRECTORY above) and uses
927# the filenames "mainlog", "paniclog", and "rejectlog". If you want to change
928# this, you can set LOG_FILE_PATH to a path name containing one occurrence of
929# %s. This will be replaced by one of the strings "main", "panic", or "reject"
930# to form the final file names. Some installations may want something like this:
931
932# LOG_FILE_PATH=/var/log/exim_%slog
933LOG_FILE_PATH=/var/log/exim4/%slog
934
935# which results in files with names /var/log/exim_mainlog, etc. The directory
936# in which the log files are placed must exist; Exim does not try to create
937# it for itself. It is also your responsibility to ensure that Exim is capable
938# of writing files using this path name. The Exim user (see EXIM_USER above)
939# must be able to create and update files in the directory you have specified.
940
941# You can also configure Exim to use syslog, instead of or as well as log
942# files, by settings such as these
943
944# LOG_FILE_PATH=syslog
945# LOG_FILE_PATH=syslog:/var/log/exim_%slog
946
947# The first of these uses only syslog; the second uses syslog and also writes
948# to log files. Do not include white space in such a setting as it messes up
949# the building process.
950
951
952#------------------------------------------------------------------------------
953# When logging to syslog, the following option caters for syslog replacements
954# that are able to accept log entries longer than the 1024 characters allowed
955# by RFC 3164. It is up to you to make sure your syslog daemon can handle this.
956# Non-printable characters are usually unacceptable regardless, so log entries
957# are still split on newline characters.
958
959# SYSLOG_LONG_LINES=yes
960
961# If you are not interested in the process identifier (pid) of the Exim that is
962# making the call to syslog, then comment out the following line.
963
964SYSLOG_LOG_PID=yes
965
966
967#------------------------------------------------------------------------------
968# Cycling log files: this variable specifies the maximum number of old
969# log files that are kept by the exicyclog log-cycling script. You don't have
970# to use exicyclog. If your operating system has other ways of cycling log
971# files, you can use them instead. The exicyclog script isn't run by default;
972# you have to set up a cron job for it if you want it.
973
974EXICYCLOG_MAX=10
975
976
977#------------------------------------------------------------------------------
978# The compress command is used by the exicyclog script to compress old log
979# files. Both the name of the command and the suffix that it adds to files
980# need to be defined here. See also the EXICYCLOG_MAX configuration.
981
982COMPRESS_COMMAND=/bin/gzip
983COMPRESS_SUFFIX=gz
984
985
986#------------------------------------------------------------------------------
987# If the exigrep utility is fed compressed log files, it tries to uncompress
988# them using this command.
989
990# Leave it empty to enforce autodetection at runtime:
991# ZCAT_COMMAND=
992#
993# Omit the path if you want to use your system's PATH:
994# ZCAT_COMMAND=zcat
995#
996# Or specify the full pathname:
997ZCAT_COMMAND=zcat
998
999#------------------------------------------------------------------------------
1000# Compiling in support for embedded Perl: If you want to be able to
1001# use Perl code in Exim's string manipulation language and you have Perl
1002# (version 5.004 or later) installed, set EXIM_PERL to perl.o. Using embedded
1003# Perl costs quite a lot of resources. Only do this if you really need it.
1004
1005EXIM_PERL=perl.o
1006
1007
1008#------------------------------------------------------------------------------
1009# Support for dynamically-loaded string expansion functions via ${dlfunc. If
1010# you are using gcc the dynamically-loaded object must be compiled with the
1011# -shared option, and you will need to add -export-dynamic to EXTRALIBS so
1012# that the local_scan API is made available by the linker. You may also need
1013# to add -ldl to EXTRALIBS so that dlopen() is available to Exim.
1014
1015EXPAND_DLFUNC=yes
1016
1017
1018#------------------------------------------------------------------------------
1019# Exim has support for PAM (Pluggable Authentication Modules), a facility
1020# which is available in the latest releases of Solaris and in some GNU/Linux
1021# distributions (see http://ftp.kernel.org/pub/linux/libs/pam/). The Exim
1022# support, which is intended for use in conjunction with the SMTP AUTH
1023# facilities, is included only when requested by the following setting:
1024
1025SUPPORT_PAM=yes
1026
1027# You probably need to add -lpam to EXTRALIBS, and in some releases of
1028# GNU/Linux -ldl is also needed.
1029EXTRALIBS=-lpam -export-dynamic
1030
1031
1032#------------------------------------------------------------------------------
1033# Proxying.
1034#
1035# If you may want to use outbound (client-side) proxying, using Socks5,
1036# uncomment the line below.
1037
1038SUPPORT_SOCKS=yes
1039
1040# If you may want to use inbound (server-side) proxying, using Proxy Protocol,
1041# uncomment the line below.
1042
1043SUPPORT_PROXY=yes
1044
1045
1046#------------------------------------------------------------------------------
1047# Internationalisation.
1048#
1049# Uncomment the following to include Internationalisation features. This is the
1050# SMTPUTF8 ESMTP extension, and associated facilities for handling UTF8 domain
1051# and localparts, per RFC 3490 (IDNA2003).
1052# You need to have the IDN library installed.
1053# If you want IDNA2008 mappings per RFCs 5890, 6530 and 6533, you additionally
1054# need libidn2 and SUPPORT_I18N_2008.
1055
1056SUPPORT_I18N=yes
1057# LDFLAGS += -lidn
1058SUPPORT_I18N_2008=yes
1059LDFLAGS += -lidn -lidn2
1060
1061
1062#------------------------------------------------------------------------------
1063# Uncomment the following lines to add SPF support. You need to have libspf2
1064# installed on your system (www.libspf2.org). Depending on where it is installed
1065# you may have to edit the CFLAGS and LDFLAGS lines.
1066
1067# SUPPORT_SPF=yes
1068# CFLAGS += -I/usr/local/include
1069# LDFLAGS += -lspf2
1070
1071
1072#------------------------------------------------------------------------------
1073# Support for authentication via Radius is also available. The Exim support,
1074# which is intended for use in conjunction with the SMTP AUTH facilities,
1075# is included only when requested by setting the following parameter to the
1076# location of your Radius configuration file:
1077
1078# RADIUS_CONFIG_FILE=/etc/radiusclient/radiusclient.conf
1079# RADIUS_CONFIG_FILE=/etc/radius.conf
1080
1081# If you have set RADIUS_CONFIG_FILE, you should also set one of these to
1082# indicate which RADIUS library is used:
1083
1084# RADIUS_LIB_TYPE=RADIUSCLIENT
1085# RADIUS_LIB_TYPE=RADIUSCLIENTNEW
1086# RADIUS_LIB_TYPE=RADLIB
1087
1088# RADIUSCLIENT is the radiusclient library; you probably need to add
1089# -lradiusclient to EXTRALIBS.
1090#
1091# The API for the radiusclient library was changed at release 0.4.0.
1092# Unfortunately, the header file does not define a version number that clients
1093# can use to support both the old and new APIs. If you are using version 0.4.0
1094# or later of the radiusclient library, you should use RADIUSCLIENTNEW.
1095#
1096# RADLIB is the Radius library that comes with FreeBSD (the header file is
1097# called radlib.h); you probably need to add -lradius to EXTRALIBS.
1098#
1099# If you do not set RADIUS_LIB_TYPE, Exim assumes the radiusclient library,
1100# using the original API.
1101
1102
1103#------------------------------------------------------------------------------
1104# Support for authentication via the Cyrus SASL pwcheck daemon is available.
1105# Note, however, that pwcheck is now deprecated in favour of saslauthd (see
1106# next item). The Exim support for pwcheck, which is intented for use in
1107# conjunction with the SMTP AUTH facilities, is included only when requested by
1108# setting the following parameter to the location of the pwcheck daemon's
1109# socket.
1110#
1111# There is no need to install all of SASL on your system. You just need to run
1112# ./configure --with-pwcheck, cd to the pwcheck directory within the sources,
1113# make and make install. You must create the socket directory (default
1114# /var/pwcheck) and chown it to Exim's user and group. Once you have installed
1115# pwcheck, you should arrange for it to be started by root at boot time.
1116
1117# CYRUS_PWCHECK_SOCKET=/var/pwcheck/pwcheck
1118
1119
1120#------------------------------------------------------------------------------
1121# Support for authentication via the Cyrus SASL saslauthd daemon is available.
1122# The Exim support, which is intended for use in conjunction with the SMTP AUTH
1123# facilities, is included only when requested by setting the following
1124# parameter to the location of the saslauthd daemon's socket.
1125#
1126# There is no need to install all of SASL on your system. You just need to run
1127# ./configure --with-saslauthd (and any other options you need, for example, to
1128# select or deselect authentication mechanisms), cd to the saslauthd directory
1129# within the sources, make and make install. You must create the socket
1130# directory (default /var/state/saslauthd) and chown it to Exim's user and
1131# group. Once you have installed saslauthd, you should arrange for it to be
1132# started by root at boot time.
1133
1134# CYRUS_SASLAUTHD_SOCKET=/var/state/saslauthd/mux
1135
1136# default in Debian's sasl2-bin
1137CYRUS_SASLAUTHD_SOCKET=/var/run/saslauthd/mux
1138
1139#------------------------------------------------------------------------------
1140# TCP wrappers: If you want to use tcpwrappers from within Exim, uncomment
1141# this setting. See the manual section entitled "Use of tcpwrappers" in the
1142# chapter on building and installing Exim.
1143#
1144# USE_TCP_WRAPPERS=yes
1145#
1146# You may well also have to specify a local "include" file and an additional
1147# library for TCP wrappers, so you probably need something like this:
1148#
1149# USE_TCP_WRAPPERS=yes
1150# CFLAGS=-O -I/usr/local/include
1151# EXTRALIBS_EXIM=-L/usr/local/lib -lwrap
1152#
1153# but of course there may need to be other things in CFLAGS and EXTRALIBS_EXIM
1154# as well.
1155#
1156# To use a name other than exim in the tcpwrappers config file,
1157# e.g. if you're running multiple daemons with different access lists,
1158# or multiple MTAs with the same access list, define
1159# TCP_WRAPPERS_DAEMON_NAME accordingly
1160#
1161# TCP_WRAPPERS_DAEMON_NAME="exim"
1162
1163
1164#------------------------------------------------------------------------------
1165# The default action of the exim_install script (which is run by "make
1166# install") is to install the Exim binary with a unique name such as
1167# exim-4.43-1, and then set up a symbolic link called "exim" to reference it,
1168# moving the symbolic link from any previous version. If you define NO_SYMLINK
1169# (the value doesn't matter), the symbolic link is not created or moved. You
1170# will then have to "turn Exim on" by setting up the link manually.
1171
1172# NO_SYMLINK=yes
1173
1174
1175#------------------------------------------------------------------------------
1176# Another default action of the install script is to install a default runtime
1177# configuration file if one does not exist. This configuration has a router for
1178# expanding system aliases. The default assumes that these aliases are kept
1179# in the traditional file called /etc/aliases. If such a file does not exist,
1180# the installation script creates one that contains just comments (no actual
1181# aliases). The following setting can be changed to specify a different
1182# location for the system alias file.
1183
1184SYSTEM_ALIASES_FILE=/etc/aliases
1185
1186
1187#------------------------------------------------------------------------------
1188# There are some testing options (-be, -bt, -bv) that read data from the
1189# standard input when no arguments are supplied. By default, the input lines
1190# are read using the standard fgets() function. This does not support line
1191# editing during interactive input (though the terminal's "erase" character
1192# works as normal). If your operating system has the readline() function, and
1193# in addition supports dynamic loading of library functions, you can cause
1194# Exim to use readline() for the -be testing option (only) by uncommenting the
1195# following setting. Dynamic loading is used so that the library is loaded only
1196# when the -be testing option is given; by the time the loading occurs,
1197# Exim has given up its root privilege and is running as the calling user. This
1198# is the reason why readline() is NOT supported for -bt and -bv, because Exim
1199# runs as root or as exim, respectively, for those options. When USE_READLINE
1200# is "yes", as well as supporting line editing, a history of input lines in the
1201# current run is maintained.
1202
1203# USE_READLINE=yes
1204
1205# You may need to add -ldl to EXTRALIBS when you set USE_READLINE=yes.
1206# Note that this option adds to the size of the Exim binary, because the
1207# dynamic loading library is not otherwise included.
1208
1209# If libreadline is not in the normal library paths, then because Exim is
1210# setuid you'll need to ensure that the correct directory is stamped into
1211# the binary so that dlopen will find it.
1212# Eg, on macOS/Darwin with a third-party install of libreadline, perhaps:
1213
1214# EXTRALIBS_EXIM+=-Wl,-rpath,/usr/local/opt/readline/lib
1215
1216
1217#------------------------------------------------------------------------------
1218# Uncomment this setting to include IPv6 support.
1219
1220# HAVE_IPV6=yes
1221
1222###############################################################################
1223# THINGS YOU ALMOST NEVER NEED TO MENTION #
1224###############################################################################
1225
1226# The settings in this section are available for use in special circumstances.
1227# In the vast majority of installations you need not change anything below.
1228
1229
1230#------------------------------------------------------------------------------
1231# The following commands live in different places in some OS. Either the
1232# ultimate default settings, or the OS-specific files should already point to
1233# the right place, but they can be overridden here if necessary. These settings
1234# are used when building various scripts to ensure that the correct paths are
1235# used when the scripts are run. They are not used in the Makefile itself. Perl
1236# is not necessary for running Exim unless you set EXIM_PERL (see above) to get
1237# it embedded, but there are some utilities that are Perl scripts. If you
1238# haven't got Perl, Exim will still build and run; you just won't be able to
1239# use those utilities.
1240
1241# CHOWN_COMMAND=/usr/bin/chown
1242# CHGRP_COMMAND=/usr/bin/chgrp
1243# CHMOD_COMMAND=/usr/bin/chmod
1244# MV_COMMAND=/bin/mv
1245# RM_COMMAND=/bin/rm
1246# TOUCH_COMMAND=/usr/bin/touch
1247# PERL_COMMAND=/usr/bin/perl
1248
1249
1250#------------------------------------------------------------------------------
1251# The following macro can be used to change the command for building a library
1252# of functions. By default the "ar" command is used, with options "cq".
1253# Only in rare circumstances should you need to change this.
1254
1255# AR=ar cq
1256
1257
1258#------------------------------------------------------------------------------
1259# In some operating systems, the value of the TMPDIR environment variable
1260# controls where temporary files are created. Exim does not make use of
1261# temporary files, except when delivering to MBX mailboxes. However, if Exim
1262# calls any external libraries (e.g. DBM libraries), they may use temporary
1263# files, and thus be influenced by the value of TMPDIR. For this reason, when
1264# Exim starts, it checks the environment for TMPDIR, and if it finds it is set,
1265# it replaces the value with what is defined here. Commenting this setting
1266# suppresses the check altogether. Older installations call this macro
1267# just TMPDIR, but this has side effects at build time. At runtime
1268# TMPDIR is checked as before.
1269
1270EXIM_TMPDIR="/tmp"
1271
1272
1273#------------------------------------------------------------------------------
1274# The following macros can be used to change the default modes that are used
1275# by the appendfile transport. In most installations the defaults are just
1276# fine, and in any case, you can change particular instances of the transport
1277# at run time if you want.
1278
1279# APPENDFILE_MODE=0600
1280# APPENDFILE_DIRECTORY_MODE=0700
1281# APPENDFILE_LOCKFILE_MODE=0600
1282
1283
1284#------------------------------------------------------------------------------
1285# In some installations there may be multiple machines sharing file systems,
1286# where a different configuration file is required for Exim on the different
1287# machines. If CONFIGURE_FILE_USE_NODE is defined, then Exim will first look
1288# for a configuration file whose name is that defined by CONFIGURE_FILE,
1289# with the node name obtained by uname() tacked on the end, separated by a
1290# period (for example, /usr/exim/configure.host.in.some.domain). If this file
1291# does not exist, then the bare configuration file name is tried.
1292
1293# CONFIGURE_FILE_USE_NODE=yes
1294
1295
1296#------------------------------------------------------------------------------
1297# In some esoteric configurations two different versions of Exim are run,
1298# with different setuid values, and different configuration files are required
1299# to handle the different cases. If CONFIGURE_FILE_USE_EUID is defined, then
1300# Exim will first look for a configuration file whose name is that defined
1301# by CONFIGURE_FILE, with the effective uid tacked on the end, separated by
1302# a period (for example, /usr/exim/configure.0). If this file does not exist,
1303# then the bare configuration file name is tried. In the case when both
1304# CONFIGURE_FILE_USE_EUID and CONFIGURE_FILE_USE_NODE are set, four files
1305# are tried: <name>.<euid>.<node>, <name>.<node>, <name>.<euid>, and <name>.
1306
1307# CONFIGURE_FILE_USE_EUID=yes
1308
1309
1310#------------------------------------------------------------------------------
1311# The size of the delivery buffers: These specify the sizes (in bytes) of
1312# the buffers that are used when copying a message from the spool to a
1313# destination. There is rarely any need to change these values.
1314
1315# DELIVER_IN_BUFFER_SIZE=8192
1316# DELIVER_OUT_BUFFER_SIZE=8192
1317
1318
1319#------------------------------------------------------------------------------
1320# The mode of the database directory: Exim creates a directory called "db"
1321# in its spool directory, to hold its databases of hints. This variable
1322# determines the mode of the created directory. The default value in the
1323# source is 0750.
1324
1325# EXIMDB_DIRECTORY_MODE=0750
1326
1327
1328#------------------------------------------------------------------------------
1329# Database file mode: The mode of files created in the "db" directory defaults
1330# to 0640 in the source, and can be changed here.
1331
1332# EXIMDB_MODE=0640
1333
1334
1335#------------------------------------------------------------------------------
1336# Database lock file mode: The mode of zero-length files created in the "db"
1337# directory to use for locking purposes defaults to 0640 in the source, and
1338# can be changed here.
1339
1340# EXIMDB_LOCKFILE_MODE=0640
1341
1342
1343#------------------------------------------------------------------------------
1344# This parameter sets the maximum length of the header portion of a message
1345# that Exim is prepared to process. The default setting is one megabyte. The
1346# limit exists in order to catch rogue mailers that might connect to your SMTP
1347# port, start off a header line, and then just pump junk at it for ever. The
1348# message_size_limit option would also catch this, but it may not be set.
1349# The value set here is the default; it can be changed at runtime.
1350
1351# HEADER_MAXSIZE="(1024*1024)"
1352
1353
1354#------------------------------------------------------------------------------
1355# The mode of the input directory: The input directory is where messages are
1356# kept while awaiting delivery. Exim creates it if necessary, using a mode
1357# which can be defined here (default 0750).
1358
1359# INPUT_DIRECTORY_MODE=0750
1360
1361
1362#------------------------------------------------------------------------------
1363# The mode of Exim's log directory, when it is created by Exim inside the spool
1364# directory, defaults to 0750 but can be changed here.
1365
1366# LOG_DIRECTORY_MODE=0750
1367
1368
1369#------------------------------------------------------------------------------
1370# The log files themselves are created as required, with a mode that defaults
1371# to 0640, but which can be changed here.
1372
1373# LOG_MODE=0640
1374
1375
1376#------------------------------------------------------------------------------
1377# The TESTDB lookup is for performing tests on the handling of lookup results,
1378# and is not useful for general running. It should be included only when
1379# debugging the code of Exim.
1380
1381# LOOKUP_TESTDB=yes
1382
1383
1384#------------------------------------------------------------------------------
1385# /bin/sh is used by default as the shell in which to run commands that are
1386# defined in the makefiles. This can be changed if necessary, by uncommenting
1387# this line and specifying another shell, but note that a Bourne-compatible
1388# shell is expected.
1389
1390# MAKE_SHELL=/bin/sh
1391
1392
1393#------------------------------------------------------------------------------
1394# The maximum number of named lists of each type (address, domain, host, and
1395# local part) can be increased by changing this value. It should be set to
1396# a multiple of 16.
1397
1398MAX_NAMED_LIST=32
1399
1400
1401#------------------------------------------------------------------------------
1402# Network interfaces: Unless you set the local_interfaces option in the runtime
1403# configuration file to restrict Exim to certain interfaces only, it will run
1404# code to find all the interfaces there are on your host. Unfortunately,
1405# the call to the OS that does this requires a buffer large enough to hold
1406# data for all the interfaces - it was designed in the days when a host rarely
1407# had more than three or four interfaces. Nowadays hosts can have very many
1408# virtual interfaces running on the same hardware. If you have more than 250
1409# virtual interfaces, you will need to uncomment this setting and increase the
1410# value.
1411
1412# MAXINTERFACES=250
1413
1414
1415#------------------------------------------------------------------------------
1416# Per-message logs: While a message is in the process of being delivered,
1417# comments on its progress are written to a message log, for the benefit of
1418# human administrators. These logs are held in a directory called "msglog"
1419# in the spool directory. Its mode defaults to 0750, but can be changed here.
1420# The message log directory is also used for storing files that are used by
1421# transports for returning data to a message's sender (see the "return_output"
1422# option for transports).
1423
1424# MSGLOG_DIRECTORY_MODE=0750
1425
1426
1427#------------------------------------------------------------------------------
1428# There are three options which are used when compiling the Perl interface and
1429# when linking with Perl. The default values for these are placed automatically
1430# at the head of the Makefile by the script which builds it. However, if you
1431# want to override them, you can do so here.
1432
1433# PERL_CC=
1434# PERL_CCOPTS=
1435# PERL_LIBS=
1436
1437
1438#------------------------------------------------------------------------------
1439# If you wish to disable valgrind in the binary, define NVALGRIND=1.
1440# This should not be needed.
1441
1442# NVALGRIND=1
1443
1444#------------------------------------------------------------------------------
1445# Identifying the daemon: When an Exim daemon starts up, it writes its pid
1446# (process id) to a file so that it can easily be identified. The path of the
1447# file can be specified here. Some installations may want something like this:
1448
1449# PID_FILE_PATH=/var/lock/exim.pid
1450PID_FILE_PATH=/run/exim4/exim.pid
1451
1452# If PID_FILE_PATH is not defined, Exim writes a file in its spool directory
1453# using the name "exim-daemon.pid".
1454
1455# If you start up a daemon without the -bd option (for example, with just
1456# the -q15m option), a pid file is not written. Also, if you override the
1457# configuration file with the -oX option, no pid file is written. In other
1458# words, the pid file is written only for a "standard" daemon.
1459
1460
1461#------------------------------------------------------------------------------
1462# If Exim creates the spool directory, it is given this mode, defaulting in the
1463# source to 0750.
1464
1465# SPOOL_DIRECTORY_MODE=0750
1466
1467
1468#------------------------------------------------------------------------------
1469# The mode of files on the input spool which hold the contents of messages can
1470# be changed here. The default is 0640 so that information from the spool is
1471# available to anyone who is a member of the Exim group.
1472
1473# SPOOL_MODE=0640
1474
1475
1476#------------------------------------------------------------------------------
1477# Moving frozen messages: If the following is uncommented, Exim is compiled
1478# with support for automatically moving frozen messages out of the main spool
1479# directory, a facility that is found useful by some large installations. A
1480# run time option is required to cause the moving actually to occur. Such
1481# messages become "invisible" to the normal management tools.
1482
1483# SUPPORT_MOVE_FROZEN_MESSAGES=yes
1484SUPPORT_MOVE_FROZEN_MESSAGES=yes
1485
1486
1487#------------------------------------------------------------------------------
1488# Expanding match_* second parameters: BE CAREFUL IF ENABLING THIS!
1489# It has proven too easy in practice for administrators to configure security
1490# problems into their Exim install, by treating match_domain{}{} and friends
1491# as a form of string comparison, where the second string comes from untrusted
1492# data. Because these options take lists, which can include lookup;LOOKUPDATA
1493# style elements, a foe can then cause Exim to, eg, execute an arbitrary MySQL
1494# query, dropping tables.
1495# From Exim 4.77 onwards, the second parameter is not expanded; it can still
1496# be a list literal, or a macro, or a named list reference. There is also
1497# the new expansion condition "inlisti" which does expand the second parameter,
1498# but treats it as a list of strings; also, there's "eqi" which is probably
1499# what is normally wanted.
1500#
1501# If you really need to have the old behaviour, know what you are doing and
1502# will not complain if your system is compromised as a result of doing so, then
1503# uncomment this option to get the old behaviour back.
1504
1505# EXPAND_LISTMATCH_RHS=yes
1506
1507#------------------------------------------------------------------------------
1508# Disabling the use of fsync(): DO NOT UNCOMMENT THE FOLLOWING LINE unless you
1509# really, really, really know what you are doing. And even then, think again.
1510# You should never uncomment this when compiling a binary for distribution.
1511# Use it only when compiling Exim for your own use.
1512#
1513# Uncommenting this line enables the use of a runtime option called
1514# disable_fsync, which can be used to stop Exim using fsync() to ensure that
1515# files are written to disc before proceeding. When this is disabled, crashes
1516# and hardware problems such as power outages can cause data to be lost. This
1517# feature should only be used in very exceptional circumstances. YOU HAVE BEEN
1518# WARNED.
1519
1520# ENABLE_DISABLE_FSYNC=yes
1521
1522#------------------------------------------------------------------------------
1523# For development, add this to include code to time various stages and report.
1524# CFLAGS += -DMEASURE_TIMING
1525
1526# End of EDITME for Exim 4.
1527
1528# enable IPv6 support
1529HAVE_IPV6=YES