Qmail

[edit] External links

cr.yp.to/qmail.html djb's official page
qmail.org an unofficial qmail homepage
lifewithqmail.org a popular qmail guide
QmailRocks.com another popular qmail guide
Wikipedia: qmail encyclopedia article
Qmail-Scanner an add-on that enables a Qmail e-mail server to scan all gateway-ed e-mail for certain characteristics
Spamassassin an extensible email filter which is used to identify spam
razor antispam addon for spamassassin and qmail
pyzor antispam addon for spamassassin and qmail
ClamAV Antivirus that can be used with qmail
@Mail Commercial WebMail software that can be used with qMail