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 extensive, and in particular it has some defences against mail bombs and unsolicited junk mail in the form of options for refusing messages from particular hosts, networks, or senders. It can be installed in place of sendmail, although the configuration of exim is quite different to that of sendmail.

An expanded introduction is available.

New Things

• An update to the system filter to protect broken MS mail clients from the real world has been produced. This protects against the bug described on BugTraq where a long date string can subvert the client. The filter can be found at ftp://ftp.exim.org/pub/filter/ or here. The file contains installation instructions.
• Exim Version 3.15 is available - see the availability pages to get hold of a copy.
• A Generic Windows Executable Content filter is available at ftp://ftp.exim.org/pub/filter/ . This is an exim system filter which attempts to detect executables including the types responsible for the recent Windows/Outlook mail worms. It is not infallible, but many sites may find it useful.

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