A small collection of trivial patches - including one which improves interaction with Outlook Express and patches for replication, see the LISA paper link above
RTCyrus3 It uses socket map protocol to make sendmail check if cyrus mailbox exists before accepting messages. It requires cyrus-2.2.3+ and sendmail-8.13. Version 3 has been specially designed for Cyrus Virtual Domains and "aliases with domains".
RTCyrus2 It uses socket map protocol to make sendmail check if cyrus mailbox exists before accepting messages. It may be better fit for some less typical situation than version 3.
cyrusv2 mailer (release B) It provides cyrusv2 mailer and additional cyrusv2d mailer. Unlike cyrusv2 cyrusv2d does not strip domain of envelope recipient.
ckuser_cyrus It uses socket map protocol to make sendmail check if cyrus mailbox exists before accepting messages. Like RTCyrus2, but easier installation.