Mail Server
These packages allow you to configure an IMAP or SMTP mail server.
- cyrus-imapd - A high-performance mail server with IMAP, POP3, NNTP and SIEVE support
 - cyrus-imapd-perl - Cyrus IMAP server utility Perl modules
 - cyrus-sasl - The Cyrus SASL library.
 - dovecot - Dovecot Secure imap server
 - exim - The exim mail transfer agent
 - exim-doc - Documentation for the exim mail transfer agent
 - mailman - Mailing list manager with built in Web access.
 - postfix - Postfix Mail Transport Agent
 - sendmail - A widely used Mail Transport Agent (MTA).
 - sendmail-cf - The files needed to reconfigure Sendmail.
 - spamassassin - Spam filter for email which can be invoked from mail delivery agents.
 - squirrelmail - SquirrelMail webmail client