The Exim Home Page

Exim is a message transfer agent (MTA) developed at the University of Cambridge for use on Unix systems connected to the Internet. It is freely available under the terms of the GNU General Public Licence. In style it is similar to Smail 3, but its facilities are more general. There is a great deal of flexibility in the way mail can be routed, and there are extensive facilities for checking incoming mail. Exim can be installed in place of sendmail, although the configuration of exim is quite different to that of sendmail.

An expanded, although outdated, introduction is available.

New Things

• Please note that this web site is updated asynchronously with exim releases, and may sometimes trail versions by a few days or even weeks
• Current Exim versions are 3.36 and 4.12, both of which are bug fix releases over the previous versions.
• A Generic Windows Executable Content filter is available at ftp://ftp.exim.org/pub/filter/ or here. This is an exim system filter which attempts to detect Windows executables, and block the messages containing them. It has limitations - specifically related to trying to parse MIME with regular expressions, but many people are using it as a cheap means of protection. NB this is no longer being maintained.

OSDir.com site

There is an entry for exim on O'Reilly's OSDir.com site. At the time of writing this has very little content, but people may wish to correct that...

Exim Book

The definitive exim version 3 book, written by Philip Hazel, is still available. Orders can be placed through a number of the on-line retailers. A new book covering exim version 4 (to be published by a different publisher) is currently in preparation.

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