For those looking for an alternative to commercial email solutions. Suntek's installation of qmail leave you with the following:

1. Qmail itself - qmail, ucspi-tcp, daemontools w/enhanced logging.
2. John Simpson's massive qmail patch, which includes (among others) qmailqueue, smtp-auth and TLS smtp encryption.
3. EZmlm - A fast and easy to use mailing list manager that works through qmail.
4. Autoresponder - Enables auto-responder capabilities on your qmail server.
5. Vpopmail - Enables virtual e-mail hosting for multiple domains. Available with or without mysql integration.
6. Vqadmin - A web based interface to manage Vpopmail virtual domains on your qmail server.
7. Maildrop - A server-wide mail filtering tool.
8. Qmailadmin - A web based interface for managing vpopmail virtual e-mail accounts.
9. Courier-imap/imap-ssl - The popular IMAP/IMAP-SSL server.
10. Squirrelmail - A web based mail client with a boat load of cool plugins available.
11. Clam Antivirus - a virus scanner for all incoming e-mail. Tied in via qmail-scanner.
13. SpamAssassin - Tied in via Qmail-scanner. A server-wide SPAM filter.
14. qmail-scanner - The alternate queueing mechanism that allows for the use of Clam Anti-virus, Spamassassin and much more.
15. qms-analog - a patch for qmailscanner that allows for extra options as well as enhanced server stats.
16. qmailanalog - A qmail log analysis tool, made better by qms-analog. Analyzes qmail logs and then sends reports via e-mail.
17. q-trap - A domain level word based e-mail filter. The last line of defense against SPAM!