# library.
# NOTE: LDAP cannot be built as a module!
#
+# For Redis you need to have hiredis installed on your system
+# (https://github.com/redis/hiredis).
+# Depending on where it is installed you may have to edit the CFLAGS
+# (often += -I/usr/local/include) and LDFLAGS (-lhiredis) lines.
+
# If your system has pkg-config then the _INCLUDE/_LIBS setting can be
# handled for you automatically by also defining the _PC variable to reference
# the name of the pkg-config package, if such is available.
# LOOKUP_ORACLE=yes
# LOOKUP_PASSWD=yes
# LOOKUP_PGSQL=yes
+# LOOKUP_REDIS=yes
# LOOKUP_SQLITE=yes
# LOOKUP_SQLITE_PC=sqlite3
# LOOKUP_WHOSON=yes
#------------------------------------------------------------------------------
-# The PCRE library is required for exim. There is no longer an embedded
+# The PCRE library is required for Exim. There is no longer an embedded
# version of the PCRE library included with the source code, instead you
# must use a system library or build your own copy of PCRE.
# In either case you must specify the library link info here. If the
# the command for linking Exim itself, not on any auxiliary programs. You
# don't need to set LOOKUP_INCLUDE if the relevant directories are already
# specified in INCLUDE. The settings below are just examples; -lpq is for
-# PostgreSQL, -lgds is for Interbase, -lsqlite3 is for SQLite.
+# PostgreSQL, -lgds is for Interbase, -lsqlite3 is for SQLite, -lhiredis
+# is for Redis.
#
# You do not need to use this for any lookup information added via pkg-config.
# WITH_OLD_DEMIME=yes
+#------------------------------------------------------------------------------
# If you're using ClamAV and are backporting fixes to an old version, instead
# of staying current (which is the more usual approach) then you may need to
# use an older API which uses a STREAM command, now deprecated, instead of
#
# WITH_OLD_CLAMAV_STREAM=yes
+
#------------------------------------------------------------------------------
# By default Exim includes code to support DKIM (DomainKeys Identified
# Mail, RFC4871) signing and verification. Verification of signatures is
# By default, Exim has support for checking the AD bit in a DNS response, to
# determine if DNSSEC validation was successful. If your system libraries
# do not support that bit, then set DISABLE_DNSSEC to "yes"
+# Note: Enabling EXPERIMENTAL_DANE unconditionally overrides this setting.
# DISABLE_DNSSEC=yes
+# To disable support for Events set DISABLE_EVENT to "yes"
+
+# DISABLE_EVENT=yes
+
#------------------------------------------------------------------------------
# Compiling Exim with experimental features. These are documented in
# Uncomment the following line to add support for talking to dccifd. This
# defaults the socket path to /usr/local/dcc/var/dccifd.
+# Doing so will also explicitly turn on the WITH_CONTENT_SCAN option.
# EXPERIMENTAL_DCC=yes
# CFLAGS += -I/usr/local/include
# LDFLAGS += -lopendmarc
-
-# Uncomment the following line to support Events,
-# eg. for logging to a database.
-# EXPERIMENTAL_EVENT=yes
-
-# Uncomment the following line to add Redis lookup support
-# You need to have hiredis installed on your system (https://github.com/redis/hiredis).
-# Depending on where it is installed you may have to edit the CFLAGS and LDFLAGS lines.
-# EXPERIMENTAL_REDIS=yes
-# CFLAGS += -I/usr/local/include
-# LDFLAGS += -lhiredis
-
-# Uncomment the following line to enable Experimental Proxy Protocol
-# EXPERIMENTAL_PROXY=yes
-
-# Uncomment the following line to enable support for checking certiticate
-# ownership
-# EXPERIMENTAL_CERTNAMES=yes
-
# Uncomment the following line to add DANE support
+# Note: Enabling this unconditionally overrides DISABLE_DNSSEC
# EXPERIMENTAL_DANE=yes
+# Uncomment the following to include extra information in fail DSN message (bounces)
+# EXPERIMENTAL_DSN_INFO=yes
+
###############################################################################
# THESE ARE THINGS YOU MIGHT WANT TO SPECIFY #
###############################################################################
# AUTH_HEIMDAL_GSSAPI_PC=heimdal-gssapi
# AUTH_PLAINTEXT=yes
# AUTH_SPA=yes
+# AUTH_TLS=yes
#------------------------------------------------------------------------------
# with the extension "texinfo" in the doc directory. You may find that the
# version number of the texinfo files is different to your Exim version number,
# because the main documentation isn't updated as often as the code. For
-# example, if you have Exim version 4.43, the source tarball upacks into a
+# example, if you have Exim version 4.43, the source tarball unpacks into a
# directory called exim-4.43, but the texinfo tarball unpacks into exim-4.40.
# In this case, move the contents of exim-4.40/doc into exim-4.43/doc after you
# have unpacked them. Then set INFO_DIRECTORY to the location of your info
# If the exigrep utility is fed compressed log files, it tries to uncompress
# them using this command.
+# Leave it empty to enforce autodetection at runtime:
+# ZCAT_COMMAND=
+#
+# Omit the path if you want to use your system's PATH:
+# ZCAT_COMMAND=zcat
+#
+# Or specify the full pathname:
ZCAT_COMMAND=/usr/bin/zcat
-
#------------------------------------------------------------------------------
# Compiling in support for embedded Perl: If you want to be able to
# use Perl code in Exim's string manipulation language and you have Perl
# GNU/Linux -ldl is also needed.
+#------------------------------------------------------------------------------
+# Proxying.
+#
+# If you may want to use outbound (client-side) proxying, using Socks5,
+# uncomment the line below.
+
+# SUPPORT_SOCKS=yes
+
+# If you may want to use inbound (server-side) proxying, using Proxy Protocol,
+# uncomment the line below.
+
+# SUPPORT_PROXY=yes
+
+
+#------------------------------------------------------------------------------
+# Internationalisation.
+#
+# Uncomment the following to include Internationalisation features. This is the
+# SMTPUTF8 ESMTP extension, and associated facilities for handling UTF8 domain
+# and localparts, per RFCs 5890, 6530 and 6533.
+# You need to have the IDN library installed.
+
+# SUPPORT_I18N=yes
+# LDFLAGS += -lidn
+
+
#------------------------------------------------------------------------------
# Support for authentication via Radius is also available. The Exim support,
# which is intended for use in conjunction with the SMTP AUTH facilities,
# There is no need to install all of SASL on your system. You just need to run
# ./configure --with-pwcheck, cd to the pwcheck directory within the sources,
# make and make install. You must create the socket directory (default
-# /var/pwcheck) and chown it to exim's user and group. Once you have installed
+# /var/pwcheck) and chown it to Exim's user and group. Once you have installed
# pwcheck, you should arrange for it to be started by root at boot time.
# CYRUS_PWCHECK_SOCKET=/var/pwcheck/pwcheck
#------------------------------------------------------------------------------
# Support for authentication via the Cyrus SASL saslauthd daemon is available.
-# The Exim support, which is intented for use in conjunction with the SMTP AUTH
+# The Exim support, which is intended for use in conjunction with the SMTP AUTH
# facilities, is included only when requested by setting the following
# parameter to the location of the saslauthd daemon's socket.
#
# ./configure --with-saslauthd (and any other options you need, for example, to
# select or deselect authentication mechanisms), cd to the saslauthd directory
# within the sources, make and make install. You must create the socket
-# directory (default /var/state/saslauthd) and chown it to exim's user and
+# directory (default /var/state/saslauthd) and chown it to Exim's user and
# group. Once you have installed saslauthd, you should arrange for it to be
# started by root at boot time.
# to handle the different cases. If CONFIGURE_FILE_USE_EUID is defined, then
# Exim will first look for a configuration file whose name is that defined
# by CONFIGURE_FILE, with the effective uid tacked on the end, separated by
-# a period (for eximple, /usr/exim/configure.0). If this file does not exist,
+# a period (for example, /usr/exim/configure.0). If this file does not exist,
# then the bare configuration file name is tried. In the case when both
# CONFIGURE_FILE_USE_EUID and CONFIGURE_FILE_USE_NODE are set, four files
# are tried: <name>.<euid>.<node>, <name>.<node>, <name>.<euid>, and <name>.
#------------------------------------------------------------------------------
-# Expanding match_* second paramters: BE CAREFUL IF ENABLING THIS!
+# Expanding match_* second parameters: BE CAREFUL IF ENABLING THIS!
# It has proven too easy in practice for administrators to configure security
# problems into their Exim install, by treating match_domain{}{} and friends
# as a form of string comparison, where the second string comes from untrusted