exim is a mail transfer agent (MTA) originally developed by Philip Hazel at the University of Cambridge. It is widely adopted by Debian and related distros, but is targeted for all Unix-like systems. It has its own web page.
By default, Ubuntu 11.04 comes with exim4 as the default MTA for fresh installs.
- There are several versions. I got the "simple" version, but that is not the only choice:
- exim4 -- metapackage
- exim4-base -- needed by all versions, and contains basic documentation.
- exim4-daemon-light -- simple version
- exim4-config -- configuration in /etc/exim4/conf.d, man pages and more.
- WARNING: the Debian web page (see External Links below) should be used in preference over the exim4 stuff, because they accord better with the Debian patches and file locations.
- Warning: it may not work out of the box, so you should read the docs. There are
- Files /usr/share/doc/exim4-base/README.Debian.gz and /usr/share/doc/exim4-base/README.Debian.html provided by package exim4-base.
- If you install exim4-doc-html (optional), more complete web docs on your machine will be at file:///usr/share/doc/exim4-doc-html/html/index.html.
- There is similar info documentation in the package exim4-doc-info.
One success story, on a 10.04 fresh install:
/usr/sbin/dpkg-reconfigure exim4-config ;and answer all questions; the documentation goes over each question in order and in detail.
/usr/sbin/update-exim4.conf --keepcomments ; the argument is optional, but it may be best to keep the comments until you are very familiar with the package.
/etc/init.d/exim4 restart ; your mail should now be up and running. I hope your firewall and greylist daemon are in place already.
- Patches by Debian
- Debian wiki entry for exim4 -- this is a permalink that redirects you to the current location debian documentation for exim.