MIMEDefang is a flexible MIME email scanner designed to do all kinds of email processing, including anti-virus scanning, anti-spam scanning, replacing parts of messages with URLs, adding boilerplate disclaimers, and so on. It can alter or delete various parts of a MIME message according to a Perl-based policy filter. It can also bounce messages with unacceptable attachments and modify SMTP response codes on the fly. It works with the Sendmail 8.11 and newer "Milter" API, which makes it more flexible and efficient than procmail-based approaches.
Remind is a full-featured calendar/reminder program featuring sophisticated date calculation, moon phases, sunrise/sunset, Hebrew calendar, alarms, PostScript output, an X front-end, multilingual messages, and proper handling of holidays. It also includes scripts for making a nice WWW calendar server.
CanIt is a server-based spam-control system built around SpamAssassin, MIMEDefang, Apache, and PostgreSQL. It features sophisticated spam-handling techniques which minimize the amount of spam you receive while guaranteeing that you'll never lose a valid email. CanIt achieves extraordinarily accurate discrimination through human intervention, and includes mechanisms to minimize the amount of human intervention required.
Thanks for running FM all these years. Good luck with your new name. (It took me a few minutes to figure out why logging in wasn't working... had to allow cookies from freecode.com. :))
I think Shlomi Fish was on the mark. Perl 6 is shaping up to be a Chandleresque disaster and a poster-child for Second System Syndrome.