Cyrus - IMAP server for UNIX

http://cyrusimap.web.cmu.edu//

Some links

Utilities for migration, websieve, etc - http://cyrus-utils.sourceforge.net/
Some tips on changes in the Managing IMAP book - http://nakedape.cc/wiki/index.cgi/CyrusImapNotes
Thread on moving mail from UW-IMAPD to Cyrus - http://www.mail-archive.com/info-cyrus@lists.andrew.cmu.edu/msg14292.html
Sieve, a mail filtering language that also originated from CMU - http://www.cyrusoft.com/sieve/

Sieve Filtering

WebSieve (perl) - http://www.albany.edu/its/accounts_email/websieve/
SmartSieve (php) - http://smartsieve.sourceforge.net/about.html

I had problems with SmartSieve/mcrypt... solution is: apt-get remove php4-mcrypt apt-get install php4-pear pear install Crypt_Rc4 /etc/init.d/apache restart

Microsoft Exchange Replacements

By using a special plugin called InsightConnector from Bynari it's possible to have Microsoft Outlook not connect to the expensive Windows 2000 + Microsoft Exchange combination, but to Linux and the Cyrus IMAP server instead.

http://bynari.net/index.php?id=7 - the plugin for Outlook
http://www-1.ibm.com/linux/linuxline/apr02/partnernews.shtml
http://www.exchangeadmin.com/Articles/Index.cfm?ArticleID=24138
http://www.slipstick.com/outlook/share.htm
http://www.slipstick.com/emo/2002/up020213.htm
http://migrationguide.org.uk/CaseStudies/bynari_insight_server.php - Migrating
http://www.leyton.org/weblog/archives/000435.html - Reviews of Bynari Server

Articles/Howtos about Cyrus

Part 1: http://www.linuxworld.com/site-stories/2002/0318.ldap1.html
Part 2: http://www.linuxworld.com/site-stories/2002/0401.ldap2.html
Postfix-SASL-Cyrus-MySQL-HowTO: http://www.hurrikane.de/en/howto/mx/postfix-sasl-cyrus-mysql/index.html which covers setting up virtual mail services using MySQL for storing domains and user account info.
Another HOWTO: http://www.delouw.ch/linux/Postfix-Cyrus-Web-cyradm-HOWTO/html/index.html
Integration with SpamAssassin
See ISPMan for details on web-based management, LDAP auth etc

Other notes

http://www.mail-archive.com/info-cyrus@lists.andrew.cmu.edu/msg10336.html - if POP connections hang for you, your /dev/random is broke
http://www.mail-archive.com/info-cyrus@lists.andrew.cmu.edu/msg15703.html - some tricks for importing messages
How to purge older spam messages in a Cyrus folder: http://asg.web.cmu.edu/archive/message.php?mailbox=archive.info-cyrus&msg=29168
Ideas on shared filesystems: http://asg.web.cmu.edu/archive/message.php?mailbox=archive.info-cyrus&msg=18405
funding Cyrus HA: http://www.mail-archive.com/info-cyrus@lists.andrew.cmu.edu/msg20757.html