Best MTA & AV & SF combination

[Roger Grosswiler]

I run the following combination:

MTA:      postfix
IMAP:     cyrus
SPAM:     amavisd-new/spamassassin
Antivirus:amavisd-new/antivir

Postfix is very simple to configure but very secure and supports many faces like Realtime blackhole lists,
teergrubbing etc etc. Amavisd-new is just a kind of traffic-deviation (it's more complicated but nevermind) it gets
all mails from postfix and delivers it to spamassassin for spam check and antivir for virus-checks before it gets
delivered to the cyrus-mailboxes. Cyrus is very flexible if you need virtual domain support and mailbox-quotas.
Dovecot is more simple, but even stable and secure.

HTH
Roger