Mail Server
- clamav - End-user tools for the Clam Antivirus scanner
- clamav-data - Virus signature data for the Clam Antivirus scanner
- clamav-milter - Sendmail-milter for the Clam Antivirus scanner
- spambayes - Bayesian anti-spam filter
- sqlgrey - Postfix grey-listing policy service
- uw-imap - UW Server daemons for IMAP and POP network mail protocols