Mailing the story:
iRedMail 0.6.1: Open Source Mail Server With Postfix, Dovecot, Amavisd, ClamAV, SpamAssassin, RoundCube On Ubuntu 10.04
iRedMail is a shell script that lets you quickly deploy a Open Source Mail Server solution in less than 2 minutes. This tutorial shows how to set up a mail server with Postfix, Dovecot, Amavisd, ClamAV, SpamAssassin, and RoundCube with the help of iRedMail on Ubuntu 10.04.