Mail


Fetchmail
Full featured easily configured IMAP/POP2/POP3/APOP/RPOP/KPOP client
Hypermail
Converts mail archives to HTML pages
Metamail
Mailcap-based multimedia mail handling
Mutt
Small powerful text-based mail user agent
Procmail
Autonomous mail processor
Spam Bouncer
A set of procmail recipes (e-mail filters)