Projects / Exim


Exim is a message transfer agent (MTA) developed at the University of Cambridge for use on Unix systems connected to the Internet. In style it is similar to Smail 3, but its facilities are much more extensive. Exim is in use at many sites around the world.

Operating Systems

Recent releases

  •  14 Nov 2013 17:24

    Release Notes: This release contains several enhancements and bugfixes, as well as new features. Experimental features added are DMARC, PRDR, TPDA, and Redis. Enhancements/bugfixes to existing features touched Cyrus SASL, default logging of remote acceptance, number suffix "G", allowing multiple router/transport header statements, TLS, DNS, Authenticators, Retry rules, Header generation, LDAP/LDAP_TLS, ClamAV settings, and the build system. There are new commandline options for better sendmail compatibility, cutthrough delivery, calling an ACL as an expansion item, and some new expansion variables.

    •  05 Apr 2010 16:42

      Release Notes: This is a bug-fix release for the DKIM segfault on empty headers/body (introduced in 4.70). DNSDB lookup is now enabled by default. There are also minor documentation fixes.

      •  15 Nov 2009 00:20

        Release Notes: This release is a combination feature and bugfix release. The major new features are native DKIM support without an external library and experimental DCC support via dccifd. PCRE is no longer included with the Exim distribution. Experimental Yahoo! Domainkeys support was dropped in favor of native DKIM support. Various minor bugs were fixed.

        •  29 Jun 2009 21:50

          Release Notes: This release adds preliminary DKIM support. The --help handling has been changed. The -bylocaldomain option has been added to eximstats. This release defends against bad data coming back from gethostbyaddr. There is a documentation fix for acl_not_smtp. There is a PCRE update to 7.4.

          •  30 Aug 2007 14:38

            Release Notes: A number of minor bugs have been fixed and a small number of new features have been added.

            Recent comments

            22 Aug 2004 06:48 Technonotice

            Re: Not fresh anymore?

            > Does anyone announce new releases?
            > Current version of Exim is 4.41 while
            > 4.34 is shown as the latest here. Kind
            > of spoiled meat... <sigh>

            Seems like somebody's forgotten about this site. There's still the exim-announce mailing list ( though.

            15 Aug 2004 13:04 yeti2

            Not fresh anymore?
            Does anyone announce new releases? Current version of Exim is 4.41 while 4.34 is shown as the latest here. Kind of spoiled meat... <sigh>

            18 Mar 1999 06:35 bknotts

            Exim is excellent!
            I have recently had to switch to sendmail (not by my own decision) at work, and it is crude by comparison. Exim is very configurable, but its configuration is much more straightforward. Also, the GUI eximon thingy is very useful. I find myself wanting to use it, and missing it.

            I run exim on my home box still, and will use it whereever possible in the future.

            Many thanks to the people working on exim; your hard work has resulted in the best mailer daemon, bar none!


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