1 ##################################################
2 # The Exim mail transport agent #
3 ##################################################
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.
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.
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")
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.)
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
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.
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.
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.
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.
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
68 # EXIM_GID=42 # the "mail" group
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 ###############################################################################
79 ###############################################################################
80 # THESE ARE THINGS YOU MUST SPECIFY #
81 ###############################################################################
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.
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.
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.
103 BIN_DIRECTORY=/usr/exim/bin
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.
119 CONFIGURE_FILE=/usr/exim/configure
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.
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.
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:
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.
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.
159 # Many sites define a user called "exim", with an appropriate default group,
164 # while leaving EXIM_GROUP unspecified (commented out).
167 #------------------------------------------------------------------------------
168 # SPOOL_DIRECTORY defines the directory where all the data for messages in
169 # transit is kept. It is strongly recommended that you define it here, though
170 # it is possible to leave this till the run time configuration.
172 # Exim creates the spool directory if it does not exist. The owner and group
173 # will be those defined by EXIM_USER and EXIM_GROUP, and this also applies to
174 # all the files and directories that are created in the spool directory.
176 # Almost all installations choose this:
178 SPOOL_DIRECTORY=/var/spool/exim
182 ###############################################################################
184 ###############################################################################
185 # Exim is built by default to support the SMTP STARTTLS command, which implements
186 # Transport Layer Security using SSL (Secure Sockets Layer). This requires you
187 # must install the OpenSSL library package or the GnuTLS library. Exim contains
188 # no cryptographic code of its own.
190 # If you are running Exim as a (TLS) server, just building it with TLS support
191 # is all you need to do, as tls_advertise_hosts is set to '*' by
192 # default. But you are advised to create a suiteable certificate, and tell
193 # Exim about it by means of the tls_certificate and tls_privatekey run
194 # time options, otherwise Exim will create a self signed certificate on
195 # the fly. If you are running Exim only as a (TLS) client, building it with
196 # TLS support is all you need to do.
198 # If you are using pkg-config then you should not need to worry where
199 # the libraries and headers are installed, as the pkg-config .pc
200 # specification should include all -L/-I information necessary.
201 # Enabling the USE_*_PC options should be sufficient. If not using
202 # pkg-config, then you have to specify the libraries, and you mmight
203 # need to specify the locations too.
205 # Uncomment the following lines if you want
206 # to build Exim without any TLS support (either OpenSSL or GnuTLS):
208 # Unless you do this, you must define one of USE_OPENSSL or USE_GNUTLS
211 # If you are buliding with TLS, the library configuration must be done:
213 # Uncomment this if you are using OpenSSL
215 # Uncomment one of these settings if you are using OpenSSL; pkg-config vs not
216 # and an optional location.
217 # USE_OPENSSL_PC=openssl
218 # TLS_LIBS=-lssl -lcrypto
219 # TLS_LIBS=-L/usr/local/openssl/lib -lssl -lcrypto
221 # Uncomment this if you are using GnuTLS
223 # Uncomment one of these settings if you are using GnuTLS; pkg-config vs not
224 # and an optional location. If you disable SUPPORT_DANE below, you
225 # can remove the gnutls-dane references here. Earlier versions of GnuTLS
226 # required libtasn1 and libgrypt also; add if needed.
227 # USE_GNUTLS_PC=gnutls gnutls-dane
228 # TLS_LIBS=-lgnutls -lgnutls-dane
229 # TLS_LIBS=-L/usr/local/gnu/lib -lgnutls -ltasn1 -lgcrypt -lgnutls-dane
231 # If using GnuTLS older than 2.10 and using pkg-config then note that Exim's
232 # build process will require libgcrypt-config to exist in your $PATH. A
233 # version that old is likely to become unsupported by Exim in 2017.
235 # The security fix we provide with the gnutls_allow_auto_pkcs11 option
236 # (4.82 PP/09) introduces a compatibility regression. The symbol is
237 # not available if GnuTLS is build without p11-kit (--without-p11-kit
238 # configure option). In this case use AVOID_GNUTLS_PKCS11=yes when
240 # AVOID_GNUTLS_PKCS11=yes
242 # If you are running Exim as a server, note that just building it with TLS
243 # support is not all you need to do. You also need to set up a suitable
244 # certificate, and tell Exim about it by means of the tls_certificate
245 # and tls_privatekey run time options. You also need to set tls_advertise_hosts
246 # to specify the hosts to which Exim advertises TLS support. On the other hand,
247 # if you are running Exim only as a client, building it with TLS support
248 # is all you need to do.
250 # If you are using pkg-config then you should not need to worry where the
251 # libraries and headers are installed, as the pkg-config .pc specification
252 # should include all -L/-I information necessary. If not using pkg-config
253 # then you might need to specify the locations too.
255 # Additional libraries and include files are required for both OpenSSL and
256 # GnuTLS. The TLS_LIBS settings above assume that the libraries are installed
257 # with all your other libraries. If they are in a special directory, you may
258 # need something like
260 # TLS_LIBS=-L/usr/local/openssl/lib -lssl -lcrypto
264 # TLS_LIBS=-L/opt/gnu/lib -lgnutls -ltasn1 -lgcrypt -lgnutls-dane
265 # If not using DANE under GnuTLS we can lose one library
266 # TLS_LIBS=-L/opt/gnu/lib -lgnutls -ltasn1 -lgcrypt
268 # TLS_LIBS is included only on the command for linking Exim itself, not on any
269 # auxiliary programs. If the include files are not in a standard place, you can
270 # set TLS_INCLUDE to specify where they are, for example:
272 # TLS_INCLUDE=-I/usr/local/openssl/include/
274 # TLS_INCLUDE=-I/opt/gnu/include
276 # You don't need to set TLS_INCLUDE if the relevant directories are already
277 # specified in INCLUDE.
280 # Uncomment the following line to remove support for TLS Resumption
281 # DISABLE_TLS_RESUME=yes
284 ###############################################################################
285 # THESE ARE THINGS YOU PROBABLY WANT TO SPECIFY #
286 ###############################################################################
288 # If you need extra header file search paths on all compiles, put the -I
289 # options in INCLUDE. If you want the extra searches only for certain
290 # parts of the build, see more specific xxx_INCLUDE variables below.
292 # INCLUDE=-I/example/include
294 # You need to specify some routers and transports if you want the Exim that you
295 # are building to be capable of delivering mail. You almost certainly need at
296 # least one type of lookup. You should consider whether you want to build
297 # the Exim monitor or not.
299 # If you need to override how pkg-config finds configuration files for
300 # installed software, then you can set that here; wildcards will be expanded.
302 # PKG_CONFIG_PATH=/usr/local/opt/openssl/lib/pkgconfig : /opt/*/lib/pkgconfig
305 #------------------------------------------------------------------------------
306 # These settings determine which individual router drivers are included in the
307 # Exim binary. There are no defaults in the code; those routers that are wanted
308 # must be defined here by setting the appropriate variables to the value "yes".
309 # Including a router in the binary does not cause it to be used automatically.
310 # It has also to be configured in the run time configuration file. By
311 # commenting out those you know you don't want to use, you can make the binary
312 # a bit smaller. If you are unsure, leave all of these included for now.
317 ROUTER_MANUALROUTE=yes
318 ROUTER_QUERYPROGRAM=yes
321 # This one is very special-purpose, so is not included by default.
323 # ROUTER_IPLOOKUP=yes
326 #------------------------------------------------------------------------------
327 # These settings determine which individual transport drivers are included in
328 # the Exim binary. There are no defaults; those transports that are wanted must
329 # be defined here by setting the appropriate variables to the value "yes".
330 # Including a transport in the binary does not cause it to be used
331 # automatically. It has also to be configured in the run time configuration
332 # file. By commenting out those you know you don't want to use, you can make
333 # the binary a bit smaller. If you are unsure, leave all of these included for
336 TRANSPORT_APPENDFILE=yes
337 TRANSPORT_AUTOREPLY=yes
341 # This one is special-purpose, and commonly not required, so it is not
342 # included by default.
347 #------------------------------------------------------------------------------
348 # The appendfile transport can write messages to local mailboxes in a number
349 # of formats. The code for three specialist formats, maildir, mailstore, and
350 # MBX, is included only when requested. If you do not know what this is about,
351 # leave these settings commented out.
353 # SUPPORT_MAILDIR=yes
354 # SUPPORT_MAILSTORE=yes
358 #------------------------------------------------------------------------------
359 # See below for dynamic lookup modules.
361 # If not using package management but using this anyway, then think about how
362 # you perform upgrades and revert them. You should consider the benefit of
363 # embedding the Exim version number into LOOKUP_MODULE_DIR, so that you can
364 # maintain two concurrent sets of modules.
366 # *BEWARE*: ability to modify the files in LOOKUP_MODULE_DIR is equivalent to
367 # the ability to modify the Exim binary, which is often setuid root! The Exim
368 # developers only intend this functionality be used by OS software packagers
369 # and we suggest that such packagings' integrity checks should be paranoid
370 # about the permissions of the directory and the files within.
372 # LOOKUP_MODULE_DIR=/usr/lib/exim/lookups/
374 # To build a module dynamically, you'll need to define CFLAGS_DYNAMIC for
376 # CFLAGS_DYNAMIC=-shared -rdynamic
377 # CFLAGS_DYNAMIC=-shared -rdynamic -fPIC
379 #------------------------------------------------------------------------------
380 # These settings determine which file and database lookup methods are included
381 # in the binary. See the manual chapter entitled "File and database lookups"
382 # for discussion. DBM and lsearch (linear search) are included by default. If
383 # you are unsure about the others, leave them commented out for now.
384 # LOOKUP_DNSDB does *not* refer to general mail routing using the DNS. It is
385 # for the specialist case of using the DNS as a general database facility (not
387 # If set to "2" instead of "yes" then the corresponding lookup will be
388 # built as a module and must be installed into LOOKUP_MODULE_DIR. You need to
389 # add -export-dynamic -rdynamic to EXTRALIBS. You may also need to add -ldl to
390 # EXTRALIBS so that dlopen() is available to Exim. You need to define
391 # LOOKUP_MODULE_DIR above so the exim binary actually loads dynamic lookup
393 # Also, instead of adding all the libraries/includes to LOOKUP_INCLUDE and
394 # LOOKUP_LIBS, add them to the respective LOOKUP_*_INCLUDE and LOOKUP_*_LIBS
395 # (where * is the name as given here in this list). That ensures that only
396 # the dynamic library and not the exim binary will be linked against the
398 # NOTE: LDAP cannot be built as a module!
400 # For Redis you need to have hiredis installed on your system
401 # (https://github.com/redis/hiredis).
402 # Depending on where it is installed you may have to edit the CFLAGS
403 # (often += -I/usr/local/include) and LDFLAGS (-lhiredis) lines.
405 # If your system has pkg-config then the _INCLUDE/_LIBS setting can be
406 # handled for you automatically by also defining the _PC variable to reference
407 # the name of the pkg-config package, if such is available.
419 # LOOKUP_MYSQL_PC=mariadb
427 # LOOKUP_SQLITE_PC=sqlite3
430 # These two settings are obsolete; all three lookups are compiled when
431 # LOOKUP_LSEARCH is enabled. However, we retain these for backward
432 # compatibility. Setting one forces LOOKUP_LSEARCH if it is not set.
434 # LOOKUP_WILDLSEARCH=yes
435 # LOOKUP_NWILDLSEARCH=yes
438 # Some platforms may need this for LOOKUP_NIS:
441 #------------------------------------------------------------------------------
442 # If you have set LOOKUP_LDAP=yes, you should set LDAP_LIB_TYPE to indicate
443 # which LDAP library you have. Unfortunately, though most of their functions
444 # are the same, there are minor differences. Currently Exim knows about four
445 # LDAP libraries: the one from the University of Michigan (also known as
446 # OpenLDAP 1), OpenLDAP 2, the Netscape SDK library, and the library that comes
447 # with Solaris 7 onwards. Uncomment whichever of these you are using.
449 # LDAP_LIB_TYPE=OPENLDAP1
450 # LDAP_LIB_TYPE=OPENLDAP2
451 # LDAP_LIB_TYPE=NETSCAPE
452 # LDAP_LIB_TYPE=SOLARIS
454 # If you don't set any of these, Exim assumes the original University of
455 # Michigan (OpenLDAP 1) library.
458 #------------------------------------------------------------------------------
459 # The PCRE library is required for Exim. There is no longer an embedded
460 # version of the PCRE library included with the source code, instead you
461 # must use a system library or build your own copy of PCRE.
462 # In either case you must specify the library link info here. If the
463 # PCRE header files are not in the standard search path you must also
464 # modify the INCLUDE path (above)
466 # Use PCRE_CONFIG to query the pcre-config command (first found in $PATH)
467 # to find the include files and libraries, else use PCRE_LIBS and set INCLUDE
474 #------------------------------------------------------------------------------
475 # Comment out the following line to remove DANE support
476 # Note: Enabling this unconditionally overrides DISABLE_DNSSEC
477 # forces you to have SUPPORT_TLS enabled (the default). For DANE under
478 # GnuTLS we need an additional library. See TLS_LIBS or USE_GNUTLS_PC
482 #------------------------------------------------------------------------------
483 # Additional libraries and include directories may be required for some
484 # lookup styles (e.g. LDAP, MYSQL or PGSQL). LOOKUP_LIBS is included only on
485 # the command for linking Exim itself, not on any auxiliary programs. You
486 # don't need to set LOOKUP_INCLUDE if the relevant directories are already
487 # specified in INCLUDE. The settings below are just examples; -lpq is for
488 # PostgreSQL, -lgds is for Interbase, -lsqlite3 is for SQLite, -lhiredis
489 # is for Redis, -ljansson for JSON.
491 # You do not need to use this for any lookup information added via pkg-config.
493 # LOOKUP_INCLUDE=-I /usr/local/ldap/include -I /usr/local/mysql/include -I /usr/local/pgsql/include
494 # LOOKUP_LIBS=-L/usr/local/lib -lldap -llber -lmysqlclient -lpq -lgds -lsqlite3
497 #------------------------------------------------------------------------------
498 # Compiling the Exim monitor: If you want to compile the Exim monitor, a
499 # program that requires an X11 display, then EXIM_MONITOR should be set to the
500 # value "eximon.bin". De-comment this setting to enable compilation of the
501 # monitor. The locations of various X11 directories for libraries and include
502 # files are defaulted in the OS/Makefile-Default file, but can be overridden in
503 # local OS-specific make files.
505 # EXIM_MONITOR=eximon.bin
508 #------------------------------------------------------------------------------
509 # Compiling Exim with content scanning support: If you want to compile Exim
510 # with support for message body content scanning, set WITH_CONTENT_SCAN to
511 # the value "yes". This will give you malware and spam scanning in the DATA ACL,
512 # and the MIME ACL. Please read the documentation to learn more about these
515 # WITH_CONTENT_SCAN=yes
517 # If you have content scanning you may wish to only include some of the scanner
518 # interfaces. Uncomment any of these lines to remove that code.
520 # DISABLE_MAL_FFROTD=yes
521 # DISABLE_MAL_FFROT6D=yes
522 # DISABLE_MAL_DRWEB=yes
523 # DISABLE_MAL_FSECURE=yes
524 # DISABLE_MAL_SOPHIE=yes
525 # DISABLE_MAL_CLAM=yes
526 # DISABLE_MAL_AVAST=yes
527 # DISABLE_MAL_SOCK=yes
528 # DISABLE_MAL_CMDLINE=yes
530 # These scanners are claimed to be no longer existent.
537 #------------------------------------------------------------------------------
538 # If built with TLS, Exim includes code to support DKIM (DomainKeys Identified
539 # Mail, RFC4871) signing and verification. Verification of signatures is
540 # turned on by default. See the spec for information on conditionally
541 # disabling it. To disable the inclusion of the entire feature, set
542 # DISABLE_DKIM to "yes"
546 #------------------------------------------------------------------------------
547 # Uncomment the following line to remove Per-Recipient-Data-Response support.
551 #------------------------------------------------------------------------------
552 # Uncomment the following line to remove OCSP stapling support in TLS,
553 # from Exim. Note it can only be supported when built with
554 # GnuTLS 3.1.3 or later, or OpenSSL
558 #------------------------------------------------------------------------------
559 # By default, Exim has support for checking the AD bit in a DNS response, to
560 # determine if DNSSEC validation was successful. If your system libraries
561 # do not support that bit, then set DISABLE_DNSSEC to "yes"
562 # Note: Enabling SUPPORT_DANE unconditionally overrides this setting.
566 # To disable support for Events set DISABLE_EVENT to "yes"
570 # Uncomment this line to include support for early pipelining, per
571 # https://datatracker.ietf.org/doc/draft-harris-early-pipe/
572 # SUPPORT_PIPE_CONNECT=yes
575 # Uncomment the following to remove the fast-ramp two-phase-queue-run support
576 # DISABLE_QUEUE_RAMP=yes
578 # Uncomment the following lines to add SRS (Sender Rewriting Scheme) support
579 # using only native facilities. See EXPERIMENTAL_SRS_ALT for an alternative.
583 #------------------------------------------------------------------------------
584 # Compiling Exim with experimental features. These are documented in
585 # experimental-spec.txt. "Experimental" means that the way these features are
586 # implemented may still change. Backward compatibility is not guaranteed.
588 # Uncomment the following line to add support for talking to dccifd. This
589 # defaults the socket path to /usr/local/dcc/var/dccifd.
590 # Doing so will also explicitly turn on the WITH_CONTENT_SCAN option.
592 # EXPERIMENTAL_DCC=yes
594 # Uncomment the following lines to add SRS (Sender rewriting scheme) support
595 # using the implementation in linbsrs_alt.
596 # You need to have libsrs_alt installed on your system (srs.mirtol.com).
597 # Depending on where it is installed you may have to edit the CFLAGS and
600 # EXPERIMENTAL_SRS_ALT=yes
601 # CFLAGS += -I/usr/local/include
602 # LDFLAGS += -lsrs_alt
604 # Uncomment the following line to add DMARC checking capability, implemented
605 # using libopendmarc libraries. You must have SPF and DKIM support enabled also.
607 # CFLAGS += -I/usr/local/include
608 # LDFLAGS += -lopendmarc
609 # Uncomment the following if you need to change the default. You can
610 # override it at runtime (main config option dmarc_tld_file)
611 # DMARC_TLD_FILE=/etc/exim/opendmarc.tlds
613 # Uncomment the following line to add ARC (Authenticated Received Chain)
614 # support. You must have SPF and DKIM support enabled also.
615 # EXPERIMENTAL_ARC=yes
617 # Uncomment the following lines to add Brightmail AntiSpam support. You need
618 # to have the Brightmail client SDK installed. Please check the experimental
619 # documentation for implementation details. You need to edit the CFLAGS and
622 # EXPERIMENTAL_BRIGHTMAIL=yes
623 # CFLAGS += -I/opt/brightmail/bsdk-6.0/include
624 # LDFLAGS += -lxml2_single -lbmiclient_single -L/opt/brightmail/bsdk-6.0/lib
626 # Uncomment the following to include extra information in fail DSN message (bounces)
627 # EXPERIMENTAL_DSN_INFO=yes
629 # Uncomment the following to add LMDB lookup support
630 # You need to have LMDB installed on your system (https://github.com/LMDB/lmdb)
631 # Depending on where it is installed you may have to edit the CFLAGS and LDFLAGS lines.
632 # EXPERIMENTAL_LMDB=yes
633 # CFLAGS += -I/usr/local/include
636 # Uncomment the following line to add queuefile transport support
637 # EXPERIMENTAL_QUEUEFILE=yes
639 ###############################################################################
640 # THESE ARE THINGS YOU MIGHT WANT TO SPECIFY #
641 ###############################################################################
643 # The items in this section are those that are commonly changed according to
644 # the sysadmin's preferences, but whose defaults are often acceptable. The
645 # first five are concerned with security issues, where differing levels of
646 # paranoia are appropriate in different environments. Sysadmins also vary in
647 # their views on appropriate levels of defence in these areas. If you do not
648 # understand these issues, go with the defaults, which are used by many sites.
651 #------------------------------------------------------------------------------
652 # Although Exim is normally a setuid program, owned by root, it refuses to run
653 # local deliveries as root by default. There is a runtime option called
654 # "never_users" which lists the users that must never be used for local
655 # deliveries. There is also the setting below, which provides a list that
656 # cannot be overridden at runtime. This guards against problems caused by
657 # unauthorized changes to the runtime configuration. You are advised not to
658 # remove "root" from this option, but you can add other users if you want. The
659 # list is colon-separated. It must NOT contain any spaces.
661 # FIXED_NEVER_USERS=root:bin:daemon
662 FIXED_NEVER_USERS=root
665 #------------------------------------------------------------------------------
666 # By default, Exim insists that its configuration file be owned by root. You
667 # can specify one additional permitted owner here.
671 # If the configuration file is group-writeable, Exim insists by default that it
672 # is owned by root. You can specify one additional permitted group owner here.
676 # If you specify CONFIGURE_OWNER or CONFIGURE_GROUP as a name, this is looked
677 # up at build time, and the uid or gid number is built into the binary.
678 # However, you can specify that the lookup is deferred until runtime. In this
679 # case, it is the name that is built into the binary. You can do this by a
680 # setting of the form:
682 # CONFIGURE_OWNER=ref:mail
683 # CONFIGURE_GROUP=ref:sysadmin
685 # In other words, put "ref:" in front of the user or group name. Although this
686 # costs a bit of resource at runtime, it is convenient to use this feature when
687 # building binaries that are to be run on multiple systems where the names may
688 # refer to different uids or gids. It also allows you to build Exim on a system
689 # where the relevant user or group is not defined.
692 #------------------------------------------------------------------------------
693 # The -C option allows Exim to be run with an alternate runtime configuration
694 # file. When this is used by root, root privilege is retained by the binary
695 # (for any other caller including the Exim user, it is dropped). You can
696 # restrict the location of alternate configurations by defining a prefix below.
697 # Any file used with -C must then start with this prefix (except that /dev/null
698 # is also permitted if the caller is root, because that is used in the install
699 # script). If the prefix specifies a directory that is owned by root, a
700 # compromise of the Exim account does not permit arbitrary alternate
701 # configurations to be used. The prefix can be more restrictive than just a
702 # directory (the second example).
704 # ALT_CONFIG_PREFIX=/some/directory/
705 # ALT_CONFIG_PREFIX=/some/directory/exim.conf-
708 #------------------------------------------------------------------------------
709 # When a user other than root uses the -C option to override the configuration
710 # file (including the Exim user when re-executing Exim to regain root
711 # privileges for local message delivery), this will normally cause Exim to
712 # drop root privileges. The TRUSTED_CONFIG_LIST option, specifies a file which
713 # contains a list of trusted configuration filenames, one per line. If the -C
714 # option is used by the Exim user or by the user specified in the
715 # CONFIGURE_OWNER setting, to specify a configuration file which is listed in
716 # the TRUSTED_CONFIG_LIST file, then root privileges are not dropped by Exim.
718 # TRUSTED_CONFIG_LIST=/usr/exim/trusted_configs
721 #------------------------------------------------------------------------------
722 # Uncommenting this option disables the use of the -D command line option,
723 # which changes the values of macros in the runtime configuration file.
724 # This is another protection against somebody breaking into the Exim account.
726 # DISABLE_D_OPTION=yes
729 #------------------------------------------------------------------------------
730 # By contrast, you might be maintaining a system which relies upon the ability
731 # to override values with -D and assumes that these will be passed through to
732 # the delivery processes. As of Exim 4.73, this is no longer the case by
733 # default. Going forward, we strongly recommend that you use a shim Exim
734 # configuration file owned by root stored under TRUSTED_CONFIG_LIST.
735 # That shim can set macros before .include'ing your main configuration file.
737 # As a strictly transient measure to ease migration to 4.73, the
738 # WHITELIST_D_MACROS value defines a colon-separated list of macro-names
739 # which are permitted to be overridden from the command-line which will be
740 # honoured by the Exim user. So these are macros that can persist to delivery
742 # Examples might be -DTLS or -DSPOOL=/some/dir. The values on the
743 # command-line are filtered to only permit: [A-Za-z0-9_/.-]*
745 # This option is highly likely to be removed in a future release. It exists
746 # only to make 4.73 as easy as possible to migrate to. If you use it, we
747 # encourage you to schedule time to rework your configuration to not depend
748 # upon it. Most people should not need to use this.
750 # By default, no macros are whitelisted for -D usage.
752 # WHITELIST_D_MACROS=TLS:SPOOL
754 #------------------------------------------------------------------------------
755 # Exim has support for the AUTH (authentication) extension of the SMTP
756 # protocol, as defined by RFC 2554. If you don't know what SMTP authentication
757 # is, you probably won't want to include this code, so you should leave these
758 # settings commented out. If you do want to make use of SMTP authentication,
759 # you must uncomment at least one of the following, so that appropriate code is
760 # included in the Exim binary. You will then need to set up the run time
761 # configuration to make use of the mechanism(s) selected.
764 # AUTH_CYRUS_SASL=yes
768 # AUTH_GSASL_PC=libgsasl
769 # AUTH_HEIMDAL_GSSAPI=yes
770 # AUTH_HEIMDAL_GSSAPI_PC=heimdal-gssapi
771 # AUTH_HEIMDAL_GSSAPI_PC=heimdal-gssapi heimdal-krb5
776 # Heimdal through 1.5 required pkg-config 'heimdal-gssapi'; Heimdal 7.1
777 # requires multiple pkg-config files to work with Exim, so the second example
780 #------------------------------------------------------------------------------
781 # If you specified AUTH_CYRUS_SASL above, you should ensure that you have the
782 # Cyrus SASL library installed before trying to build Exim, and you probably
783 # want to uncomment the first line below.
784 # Similarly for GNU SASL, unless pkg-config is used via AUTH_GSASL_PC.
785 # Ditto for AUTH_HEIMDAL_GSSAPI(_PC).
789 # AUTH_LIBS=-lgssapi -lheimntlm -lkrb5 -lhx509 -lcom_err -lhcrypto -lasn1 -lwind -lroken -lcrypt
791 # If using AUTH_GSASL with SCRAM methods, you should also be defining
792 # SUPPORT_I18N to get standards-conformant support of utf8 normalization.
795 #------------------------------------------------------------------------------
796 # When Exim is decoding MIME "words" in header lines, most commonly for use
797 # in the $header_xxx expansion, it converts any foreign character sets to the
798 # one that is set in the headers_charset option. The default setting is
799 # defined by this setting:
801 HEADERS_CHARSET="ISO-8859-1"
803 # If you are going to make use of $header_xxx expansions in your configuration
804 # file, or if your users are going to use them in filter files, and the normal
805 # character set on your host is something other than ISO-8859-1, you might
806 # like to specify a different default here. This value can be overridden in
807 # the runtime configuration, and it can also be overridden in individual filter
810 # IMPORTANT NOTE: The iconv() function is needed for character code
811 # conversions. Please see the next item...
814 #------------------------------------------------------------------------------
815 # Character code conversions are possible only if the iconv() function is
816 # installed on your operating system. There are two places in Exim where this
817 # is relevant: (a) The $header_xxx expansion (see the previous item), and (b)
818 # the Sieve filter support. For those OS where iconv() is known to be installed
819 # as standard, the file in OS/Makefile-xxxx contains
823 # If you are not using one of those systems, but have installed iconv(), you
824 # need to uncomment that line above. In some cases, you may find that iconv()
825 # and its header file are not in the default places. You might need to use
826 # something like this:
829 # CFLAGS=-O -I/usr/local/include
830 # EXTRALIBS_EXIM=-L/usr/local/lib -liconv
832 # but of course there may need to be other things in CFLAGS and EXTRALIBS_EXIM
835 # nb: FreeBSD as of 4.89 defines LIBICONV_PLUG to pick up the system iconv
836 # more reliably. If you explicitly want the libiconv Port then as well
837 # as adding -liconv you'll want to unset LIBICONV_PLUG. If you actually need
838 # this, let us know, but for now the Exim Maintainers are assuming that this
839 # is uncommon and so you'll need to edit OS/os.h-FreeBSD yourself to remove
843 #------------------------------------------------------------------------------
844 # The passwords for user accounts are normally encrypted with the crypt()
845 # function. Comparisons with encrypted passwords can be done using Exim's
846 # "crypteq" expansion operator. (This is commonly used as part of the
847 # configuration of an authenticator for use with SMTP AUTH.) At least one
848 # operating system has an extended function called crypt16(), which uses up to
849 # 16 characters of a password (the normal crypt() uses only the first 8). Exim
850 # supports the use of crypt16() as well as crypt() but note the warning below.
852 # You can always indicate a crypt16-encrypted password by preceding it with
853 # "{crypt16}". If you want the default handling (without any preceding
854 # indicator) to use crypt16(), uncomment the following line:
856 # DEFAULT_CRYPT=crypt16
858 # If you do that, you can still access the basic crypt() function by preceding
859 # an encrypted password with "{crypt}". For more details, see the description
860 # of the "crypteq" condition in the manual chapter on string expansions.
862 # Some operating systems do not include a crypt16() function, so Exim has one
863 # of its own, which it uses unless HAVE_CRYPT16 is defined. Normally, that will
864 # be set in an OS-specific Makefile for the OS that have such a function, so
865 # you should not need to bother with it.
867 # *** WARNING *** WARNING *** WARNING *** WARNING *** WARNING ***
868 # It turns out that the above is not entirely accurate. As well as crypt16()
869 # there is a function called bigcrypt() that some operating systems have. This
870 # may or may not use the same algorithm, and both of them may be different to
871 # Exim's built-in crypt16() that is used unless HAVE_CRYPT16 is defined.
873 # However, since there is now a move away from the traditional crypt()
874 # functions towards using SHA1 and other algorithms, tidying up this area of
875 # Exim is seen as very low priority. In practice, if you need to, you can
876 # define DEFAULT_CRYPT to the name of any function that has the same interface
877 # as the traditional crypt() function.
878 # *** WARNING *** WARNING *** WARNING *** WARNING *** WARNING ***
881 #------------------------------------------------------------------------------
882 # The default distribution of Exim contains only the plain text form of the
883 # documentation. Other forms are available separately. If you want to install
884 # the documentation in "info" format, first fetch the Texinfo documentation
885 # sources from the ftp directory and unpack them, which should create files
886 # with the extension "texinfo" in the doc directory. You may find that the
887 # version number of the texinfo files is different to your Exim version number,
888 # because the main documentation isn't updated as often as the code. For
889 # example, if you have Exim version 4.43, the source tarball unpacks into a
890 # directory called exim-4.43, but the texinfo tarball unpacks into exim-4.40.
891 # In this case, move the contents of exim-4.40/doc into exim-4.43/doc after you
892 # have unpacked them. Then set INFO_DIRECTORY to the location of your info
893 # directory. This varies from system to system, but is often /usr/share/info.
894 # Once you have done this, "make install" will build the info files and
895 # install them in the directory you have defined.
897 # INFO_DIRECTORY=/usr/share/info
900 #------------------------------------------------------------------------------
901 # Exim log directory and files: Exim creates several log files inside a
902 # single log directory. You can define the directory and the form of the
903 # log file name here. If you do not set anything, Exim creates a directory
904 # called "log" inside its spool directory (see SPOOL_DIRECTORY above) and uses
905 # the filenames "mainlog", "paniclog", and "rejectlog". If you want to change
906 # this, you can set LOG_FILE_PATH to a path name containing one occurrence of
907 # %s. This will be replaced by one of the strings "main", "panic", or "reject"
908 # to form the final file names. Some installations may want something like this:
910 # LOG_FILE_PATH=/var/log/exim_%slog
912 # which results in files with names /var/log/exim_mainlog, etc. The directory
913 # in which the log files are placed must exist; Exim does not try to create
914 # it for itself. It is also your responsibility to ensure that Exim is capable
915 # of writing files using this path name. The Exim user (see EXIM_USER above)
916 # must be able to create and update files in the directory you have specified.
918 # You can also configure Exim to use syslog, instead of or as well as log
919 # files, by settings such as these
921 # LOG_FILE_PATH=syslog
922 # LOG_FILE_PATH=syslog:/var/log/exim_%slog
924 # The first of these uses only syslog; the second uses syslog and also writes
925 # to log files. Do not include white space in such a setting as it messes up
926 # the building process.
929 #------------------------------------------------------------------------------
930 # When logging to syslog, the following option caters for syslog replacements
931 # that are able to accept log entries longer than the 1024 characters allowed
932 # by RFC 3164. It is up to you to make sure your syslog daemon can handle this.
933 # Non-printable characters are usually unacceptable regardless, so log entries
934 # are still split on newline characters.
936 # SYSLOG_LONG_LINES=yes
938 # If you are not interested in the process identifier (pid) of the Exim that is
939 # making the call to syslog, then comment out the following line.
944 #------------------------------------------------------------------------------
945 # Cycling log files: this variable specifies the maximum number of old
946 # log files that are kept by the exicyclog log-cycling script. You don't have
947 # to use exicyclog. If your operating system has other ways of cycling log
948 # files, you can use them instead. The exicyclog script isn't run by default;
949 # you have to set up a cron job for it if you want it.
954 #------------------------------------------------------------------------------
955 # The compress command is used by the exicyclog script to compress old log
956 # files. Both the name of the command and the suffix that it adds to files
957 # need to be defined here. See also the EXICYCLOG_MAX configuration.
959 COMPRESS_COMMAND=/usr/bin/gzip
963 #------------------------------------------------------------------------------
964 # If the exigrep utility is fed compressed log files, it tries to uncompress
965 # them using this command.
967 # Leave it empty to enforce autodetection at runtime:
970 # Omit the path if you want to use your system's PATH:
973 # Or specify the full pathname:
974 ZCAT_COMMAND=/usr/bin/zcat
976 #------------------------------------------------------------------------------
977 # Compiling in support for embedded Perl: If you want to be able to
978 # use Perl code in Exim's string manipulation language and you have Perl
979 # (version 5.004 or later) installed, set EXIM_PERL to perl.o. Using embedded
980 # Perl costs quite a lot of resources. Only do this if you really need it.
985 #------------------------------------------------------------------------------
986 # Support for dynamically-loaded string expansion functions via ${dlfunc. If
987 # you are using gcc the dynamically-loaded object must be compiled with the
988 # -shared option, and you will need to add -export-dynamic to EXTRALIBS so
989 # that the local_scan API is made available by the linker. You may also need
990 # to add -ldl to EXTRALIBS so that dlopen() is available to Exim.
995 #------------------------------------------------------------------------------
996 # Exim has support for PAM (Pluggable Authentication Modules), a facility
997 # which is available in the latest releases of Solaris and in some GNU/Linux
998 # distributions (see http://ftp.kernel.org/pub/linux/libs/pam/). The Exim
999 # support, which is intended for use in conjunction with the SMTP AUTH
1000 # facilities, is included only when requested by the following setting:
1004 # You probably need to add -lpam to EXTRALIBS, and in some releases of
1005 # GNU/Linux -ldl is also needed.
1008 #------------------------------------------------------------------------------
1011 # If you may want to use outbound (client-side) proxying, using Socks5,
1012 # uncomment the line below.
1016 # If you may want to use inbound (server-side) proxying, using Proxy Protocol,
1017 # uncomment the line below.
1022 #------------------------------------------------------------------------------
1023 # Internationalisation.
1025 # Uncomment the following to include Internationalisation features. This is the
1026 # SMTPUTF8 ESMTP extension, and associated facilities for handling UTF8 domain
1027 # and localparts, per RFC 3490 (IDNA2003).
1028 # You need to have the IDN library installed.
1029 # If you want IDNA2008 mappings per RFCs 5890, 6530 and 6533, you additionally
1030 # need libidn2 and SUPPORT_I18N_2008.
1034 # SUPPORT_I18N_2008=yes
1035 # LDFLAGS += -lidn -lidn2
1038 #------------------------------------------------------------------------------
1039 # Uncomment the following lines to add SPF support. You need to have libspf2
1040 # installed on your system (www.libspf2.org). Depending on where it is installed
1041 # you may have to edit the CFLAGS and LDFLAGS lines.
1044 # CFLAGS += -I/usr/local/include
1048 #------------------------------------------------------------------------------
1049 # Support for authentication via Radius is also available. The Exim support,
1050 # which is intended for use in conjunction with the SMTP AUTH facilities,
1051 # is included only when requested by setting the following parameter to the
1052 # location of your Radius configuration file:
1054 # RADIUS_CONFIG_FILE=/etc/radiusclient/radiusclient.conf
1055 # RADIUS_CONFIG_FILE=/etc/radius.conf
1057 # If you have set RADIUS_CONFIG_FILE, you should also set one of these to
1058 # indicate which RADIUS library is used:
1060 # RADIUS_LIB_TYPE=RADIUSCLIENT
1061 # RADIUS_LIB_TYPE=RADIUSCLIENTNEW
1062 # RADIUS_LIB_TYPE=RADLIB
1064 # RADIUSCLIENT is the radiusclient library; you probably need to add
1065 # -lradiusclient to EXTRALIBS.
1067 # The API for the radiusclient library was changed at release 0.4.0.
1068 # Unfortunately, the header file does not define a version number that clients
1069 # can use to support both the old and new APIs. If you are using version 0.4.0
1070 # or later of the radiusclient library, you should use RADIUSCLIENTNEW.
1072 # RADLIB is the Radius library that comes with FreeBSD (the header file is
1073 # called radlib.h); you probably need to add -lradius to EXTRALIBS.
1075 # If you do not set RADIUS_LIB_TYPE, Exim assumes the radiusclient library,
1076 # using the original API.
1079 #------------------------------------------------------------------------------
1080 # Support for authentication via the Cyrus SASL pwcheck daemon is available.
1081 # Note, however, that pwcheck is now deprecated in favour of saslauthd (see
1082 # next item). The Exim support for pwcheck, which is intented for use in
1083 # conjunction with the SMTP AUTH facilities, is included only when requested by
1084 # setting the following parameter to the location of the pwcheck daemon's
1087 # There is no need to install all of SASL on your system. You just need to run
1088 # ./configure --with-pwcheck, cd to the pwcheck directory within the sources,
1089 # make and make install. You must create the socket directory (default
1090 # /var/pwcheck) and chown it to Exim's user and group. Once you have installed
1091 # pwcheck, you should arrange for it to be started by root at boot time.
1093 # CYRUS_PWCHECK_SOCKET=/var/pwcheck/pwcheck
1096 #------------------------------------------------------------------------------
1097 # Support for authentication via the Cyrus SASL saslauthd daemon is available.
1098 # The Exim support, which is intended for use in conjunction with the SMTP AUTH
1099 # facilities, is included only when requested by setting the following
1100 # parameter to the location of the saslauthd daemon's socket.
1102 # There is no need to install all of SASL on your system. You just need to run
1103 # ./configure --with-saslauthd (and any other options you need, for example, to
1104 # select or deselect authentication mechanisms), cd to the saslauthd directory
1105 # within the sources, make and make install. You must create the socket
1106 # directory (default /var/state/saslauthd) and chown it to Exim's user and
1107 # group. Once you have installed saslauthd, you should arrange for it to be
1108 # started by root at boot time.
1110 # CYRUS_SASLAUTHD_SOCKET=/var/state/saslauthd/mux
1113 #------------------------------------------------------------------------------
1114 # TCP wrappers: If you want to use tcpwrappers from within Exim, uncomment
1115 # this setting. See the manual section entitled "Use of tcpwrappers" in the
1116 # chapter on building and installing Exim.
1118 # USE_TCP_WRAPPERS=yes
1120 # You may well also have to specify a local "include" file and an additional
1121 # library for TCP wrappers, so you probably need something like this:
1123 # USE_TCP_WRAPPERS=yes
1124 # CFLAGS=-O -I/usr/local/include
1125 # EXTRALIBS_EXIM=-L/usr/local/lib -lwrap
1127 # but of course there may need to be other things in CFLAGS and EXTRALIBS_EXIM
1130 # To use a name other than exim in the tcpwrappers config file,
1131 # e.g. if you're running multiple daemons with different access lists,
1132 # or multiple MTAs with the same access list, define
1133 # TCP_WRAPPERS_DAEMON_NAME accordingly
1135 # TCP_WRAPPERS_DAEMON_NAME="exim"
1138 #------------------------------------------------------------------------------
1139 # The default action of the exim_install script (which is run by "make
1140 # install") is to install the Exim binary with a unique name such as
1141 # exim-4.43-1, and then set up a symbolic link called "exim" to reference it,
1142 # moving the symbolic link from any previous version. If you define NO_SYMLINK
1143 # (the value doesn't matter), the symbolic link is not created or moved. You
1144 # will then have to "turn Exim on" by setting up the link manually.
1149 #------------------------------------------------------------------------------
1150 # Another default action of the install script is to install a default runtime
1151 # configuration file if one does not exist. This configuration has a router for
1152 # expanding system aliases. The default assumes that these aliases are kept
1153 # in the traditional file called /etc/aliases. If such a file does not exist,
1154 # the installation script creates one that contains just comments (no actual
1155 # aliases). The following setting can be changed to specify a different
1156 # location for the system alias file.
1158 SYSTEM_ALIASES_FILE=/etc/aliases
1161 #------------------------------------------------------------------------------
1162 # There are some testing options (-be, -bt, -bv) that read data from the
1163 # standard input when no arguments are supplied. By default, the input lines
1164 # are read using the standard fgets() function. This does not support line
1165 # editing during interactive input (though the terminal's "erase" character
1166 # works as normal). If your operating system has the readline() function, and
1167 # in addition supports dynamic loading of library functions, you can cause
1168 # Exim to use readline() for the -be testing option (only) by uncommenting the
1169 # following setting. Dynamic loading is used so that the library is loaded only
1170 # when the -be testing option is given; by the time the loading occurs,
1171 # Exim has given up its root privilege and is running as the calling user. This
1172 # is the reason why readline() is NOT supported for -bt and -bv, because Exim
1173 # runs as root or as exim, respectively, for those options. When USE_READLINE
1174 # is "yes", as well as supporting line editing, a history of input lines in the
1175 # current run is maintained.
1179 # You may need to add -ldl to EXTRALIBS when you set USE_READLINE=yes.
1180 # Note that this option adds to the size of the Exim binary, because the
1181 # dynamic loading library is not otherwise included.
1183 # If libreadline is not in the normal library paths, then because Exim is
1184 # setuid you'll need to ensure that the correct directory is stamped into
1185 # the binary so that dlopen will find it.
1186 # Eg, on macOS/Darwin with a third-party install of libreadline, perhaps:
1188 # EXTRALIBS_EXIM+=-Wl,-rpath,/usr/local/opt/readline/lib
1191 #------------------------------------------------------------------------------
1192 # Uncomment this setting to include IPv6 support.
1196 ###############################################################################
1197 # THINGS YOU ALMOST NEVER NEED TO MENTION #
1198 ###############################################################################
1200 # The settings in this section are available for use in special circumstances.
1201 # In the vast majority of installations you need not change anything below.
1204 #------------------------------------------------------------------------------
1205 # The following commands live in different places in some OS. Either the
1206 # ultimate default settings, or the OS-specific files should already point to
1207 # the right place, but they can be overridden here if necessary. These settings
1208 # are used when building various scripts to ensure that the correct paths are
1209 # used when the scripts are run. They are not used in the Makefile itself. Perl
1210 # is not necessary for running Exim unless you set EXIM_PERL (see above) to get
1211 # it embedded, but there are some utilities that are Perl scripts. If you
1212 # haven't got Perl, Exim will still build and run; you just won't be able to
1213 # use those utilities.
1215 # CHOWN_COMMAND=/usr/bin/chown
1216 # CHGRP_COMMAND=/usr/bin/chgrp
1217 # CHMOD_COMMAND=/usr/bin/chmod
1218 # MV_COMMAND=/bin/mv
1219 # RM_COMMAND=/bin/rm
1220 # TOUCH_COMMAND=/usr/bin/touch
1221 # PERL_COMMAND=/usr/bin/perl
1224 #------------------------------------------------------------------------------
1225 # The following macro can be used to change the command for building a library
1226 # of functions. By default the "ar" command is used, with options "cq".
1227 # Only in rare circumstances should you need to change this.
1232 #------------------------------------------------------------------------------
1233 # In some operating systems, the value of the TMPDIR environment variable
1234 # controls where temporary files are created. Exim does not make use of
1235 # temporary files, except when delivering to MBX mailboxes. However, if Exim
1236 # calls any external libraries (e.g. DBM libraries), they may use temporary
1237 # files, and thus be influenced by the value of TMPDIR. For this reason, when
1238 # Exim starts, it checks the environment for TMPDIR, and if it finds it is set,
1239 # it replaces the value with what is defined here. Commenting this setting
1240 # suppresses the check altogether. Older installations call this macro
1241 # just TMPDIR, but this has side effects at build time. At runtime
1242 # TMPDIR is checked as before.
1247 #------------------------------------------------------------------------------
1248 # The following macros can be used to change the default modes that are used
1249 # by the appendfile transport. In most installations the defaults are just
1250 # fine, and in any case, you can change particular instances of the transport
1251 # at run time if you want.
1253 # APPENDFILE_MODE=0600
1254 # APPENDFILE_DIRECTORY_MODE=0700
1255 # APPENDFILE_LOCKFILE_MODE=0600
1258 #------------------------------------------------------------------------------
1259 # In some installations there may be multiple machines sharing file systems,
1260 # where a different configuration file is required for Exim on the different
1261 # machines. If CONFIGURE_FILE_USE_NODE is defined, then Exim will first look
1262 # for a configuration file whose name is that defined by CONFIGURE_FILE,
1263 # with the node name obtained by uname() tacked on the end, separated by a
1264 # period (for example, /usr/exim/configure.host.in.some.domain). If this file
1265 # does not exist, then the bare configuration file name is tried.
1267 # CONFIGURE_FILE_USE_NODE=yes
1270 #------------------------------------------------------------------------------
1271 # In some esoteric configurations two different versions of Exim are run,
1272 # with different setuid values, and different configuration files are required
1273 # to handle the different cases. If CONFIGURE_FILE_USE_EUID is defined, then
1274 # Exim will first look for a configuration file whose name is that defined
1275 # by CONFIGURE_FILE, with the effective uid tacked on the end, separated by
1276 # a period (for example, /usr/exim/configure.0). If this file does not exist,
1277 # then the bare configuration file name is tried. In the case when both
1278 # CONFIGURE_FILE_USE_EUID and CONFIGURE_FILE_USE_NODE are set, four files
1279 # are tried: <name>.<euid>.<node>, <name>.<node>, <name>.<euid>, and <name>.
1281 # CONFIGURE_FILE_USE_EUID=yes
1284 #------------------------------------------------------------------------------
1285 # The size of the delivery buffers: These specify the sizes (in bytes) of
1286 # the buffers that are used when copying a message from the spool to a
1287 # destination. There is rarely any need to change these values.
1289 # DELIVER_IN_BUFFER_SIZE=8192
1290 # DELIVER_OUT_BUFFER_SIZE=8192
1293 #------------------------------------------------------------------------------
1294 # The mode of the database directory: Exim creates a directory called "db"
1295 # in its spool directory, to hold its databases of hints. This variable
1296 # determines the mode of the created directory. The default value in the
1299 # EXIMDB_DIRECTORY_MODE=0750
1302 #------------------------------------------------------------------------------
1303 # Database file mode: The mode of files created in the "db" directory defaults
1304 # to 0640 in the source, and can be changed here.
1309 #------------------------------------------------------------------------------
1310 # Database lock file mode: The mode of zero-length files created in the "db"
1311 # directory to use for locking purposes defaults to 0640 in the source, and
1312 # can be changed here.
1314 # EXIMDB_LOCKFILE_MODE=0640
1317 #------------------------------------------------------------------------------
1318 # This parameter sets the maximum length of the header portion of a message
1319 # that Exim is prepared to process. The default setting is one megabyte. The
1320 # limit exists in order to catch rogue mailers that might connect to your SMTP
1321 # port, start off a header line, and then just pump junk at it for ever. The
1322 # message_size_limit option would also catch this, but it may not be set.
1323 # The value set here is the default; it can be changed at runtime.
1325 # HEADER_MAXSIZE="(1024*1024)"
1328 #------------------------------------------------------------------------------
1329 # The mode of the input directory: The input directory is where messages are
1330 # kept while awaiting delivery. Exim creates it if necessary, using a mode
1331 # which can be defined here (default 0750).
1333 # INPUT_DIRECTORY_MODE=0750
1336 #------------------------------------------------------------------------------
1337 # The mode of Exim's log directory, when it is created by Exim inside the spool
1338 # directory, defaults to 0750 but can be changed here.
1340 # LOG_DIRECTORY_MODE=0750
1343 #------------------------------------------------------------------------------
1344 # The log files themselves are created as required, with a mode that defaults
1345 # to 0640, but which can be changed here.
1350 #------------------------------------------------------------------------------
1351 # The TESTDB lookup is for performing tests on the handling of lookup results,
1352 # and is not useful for general running. It should be included only when
1353 # debugging the code of Exim.
1358 #------------------------------------------------------------------------------
1359 # /bin/sh is used by default as the shell in which to run commands that are
1360 # defined in the makefiles. This can be changed if necessary, by uncommenting
1361 # this line and specifying another shell, but note that a Bourne-compatible
1362 # shell is expected.
1364 # MAKE_SHELL=/bin/sh
1367 #------------------------------------------------------------------------------
1368 # The maximum number of named lists of each type (address, domain, host, and
1369 # local part) can be increased by changing this value. It should be set to
1375 #------------------------------------------------------------------------------
1376 # Network interfaces: Unless you set the local_interfaces option in the runtime
1377 # configuration file to restrict Exim to certain interfaces only, it will run
1378 # code to find all the interfaces there are on your host. Unfortunately,
1379 # the call to the OS that does this requires a buffer large enough to hold
1380 # data for all the interfaces - it was designed in the days when a host rarely
1381 # had more than three or four interfaces. Nowadays hosts can have very many
1382 # virtual interfaces running on the same hardware. If you have more than 250
1383 # virtual interfaces, you will need to uncomment this setting and increase the
1389 #------------------------------------------------------------------------------
1390 # Per-message logs: While a message is in the process of being delivered,
1391 # comments on its progress are written to a message log, for the benefit of
1392 # human administrators. These logs are held in a directory called "msglog"
1393 # in the spool directory. Its mode defaults to 0750, but can be changed here.
1394 # The message log directory is also used for storing files that are used by
1395 # transports for returning data to a message's sender (see the "return_output"
1396 # option for transports).
1398 # MSGLOG_DIRECTORY_MODE=0750
1401 #------------------------------------------------------------------------------
1402 # There are three options which are used when compiling the Perl interface and
1403 # when linking with Perl. The default values for these are placed automatically
1404 # at the head of the Makefile by the script which builds it. However, if you
1405 # want to override them, you can do so here.
1412 #------------------------------------------------------------------------------
1413 # If you wish to disable valgrind in the binary, define NVALGRIND=1.
1414 # This should not be needed.
1418 #------------------------------------------------------------------------------
1419 # Identifying the daemon: When an Exim daemon starts up, it writes its pid
1420 # (process id) to a file so that it can easily be identified. The path of the
1421 # file can be specified here. Some installations may want something like this:
1423 # PID_FILE_PATH=/var/lock/exim.pid
1425 # If PID_FILE_PATH is not defined, Exim writes a file in its spool directory
1426 # using the name "exim-daemon.pid".
1428 # If you start up a daemon without the -bd option (for example, with just
1429 # the -q15m option), a pid file is not written. Also, if you override the
1430 # configuration file with the -oX option, no pid file is written. In other
1431 # words, the pid file is written only for a "standard" daemon.
1434 #------------------------------------------------------------------------------
1435 # If Exim creates the spool directory, it is given this mode, defaulting in the
1438 # SPOOL_DIRECTORY_MODE=0750
1441 #------------------------------------------------------------------------------
1442 # The mode of files on the input spool which hold the contents of messages can
1443 # be changed here. The default is 0640 so that information from the spool is
1444 # available to anyone who is a member of the Exim group.
1449 #------------------------------------------------------------------------------
1450 # Moving frozen messages: If the following is uncommented, Exim is compiled
1451 # with support for automatically moving frozen messages out of the main spool
1452 # directory, a facility that is found useful by some large installations. A
1453 # run time option is required to cause the moving actually to occur. Such
1454 # messages become "invisible" to the normal management tools.
1456 # SUPPORT_MOVE_FROZEN_MESSAGES=yes
1459 #------------------------------------------------------------------------------
1460 # Expanding match_* second parameters: BE CAREFUL IF ENABLING THIS!
1461 # It has proven too easy in practice for administrators to configure security
1462 # problems into their Exim install, by treating match_domain{}{} and friends
1463 # as a form of string comparison, where the second string comes from untrusted
1464 # data. Because these options take lists, which can include lookup;LOOKUPDATA
1465 # style elements, a foe can then cause Exim to, eg, execute an arbitrary MySQL
1466 # query, dropping tables.
1467 # From Exim 4.77 onwards, the second parameter is not expanded; it can still
1468 # be a list literal, or a macro, or a named list reference. There is also
1469 # the new expansion condition "inlisti" which does expand the second parameter,
1470 # but treats it as a list of strings; also, there's "eqi" which is probably
1471 # what is normally wanted.
1473 # If you really need to have the old behaviour, know what you are doing and
1474 # will not complain if your system is compromised as a result of doing so, then
1475 # uncomment this option to get the old behaviour back.
1477 # EXPAND_LISTMATCH_RHS=yes
1479 #------------------------------------------------------------------------------
1480 # Disabling the use of fsync(): DO NOT UNCOMMENT THE FOLLOWING LINE unless you
1481 # really, really, really know what you are doing. And even then, think again.
1482 # You should never uncomment this when compiling a binary for distribution.
1483 # Use it only when compiling Exim for your own use.
1485 # Uncommenting this line enables the use of a runtime option called
1486 # disable_fsync, which can be used to stop Exim using fsync() to ensure that
1487 # files are written to disc before proceeding. When this is disabled, crashes
1488 # and hardware problems such as power outages can cause data to be lost. This
1489 # feature should only be used in very exceptional circumstances. YOU HAVE BEEN
1492 # ENABLE_DISABLE_FSYNC=yes
1494 #------------------------------------------------------------------------------
1495 # For development, add this to include code to time various stages and report.
1496 # CFLAGS += -DMEASURE_TIMING
1498 # End of EDITME for Exim 4.