This is the Carnegie Mellon University Cyrus IMAP Server.

The 2.4 series contains numerous features and better standards
support than previous versions.

No further development work will progress on anything older than
version 2.2.  Versions 2.2 and 2.3 still receive security updates,
but new features or non-security bugfixes are unlikely to be
backported.

If you continue to install this software PLEASE be sure to read the
documentation (located in the doc/ subdirectory).  Many common questions
can be answered just by carefully following the documentation.
Please also refer to http://bugzilla.cyrusimap.org for any outstanding bugs.

Note that CMU only provides a source distribution. If you run into
problems with any binary distribution, please contact the source of
the binary distribution.

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* For the real README file, please see doc/readme.html.

* To install the software, please read doc/install.html (but please 
  read doc/readme.html first!).

* To see the changes since previous versions, check doc/changes.html,
  and if upgrading look at doc/install-upgrade.html as well.

* To obtain updates to this software, visit the web page
            http://www.cyrusimap.org/
  or ftp directly from
            ftp://ftp.cyrusimap.org/cyrus-imapd/