…this one is going to be a…
CentOS 4.0 : Postfix + MailScanner(ClamAV+Spamassassin)+LDAP+Dovecot+Cyrus-SASL+TomCat+Jamm+Squirrelmail(MySQL)+Virtual Domain Hosting e-mail server guide
note: due to the fact that I wanted to keep this as simple as possible , you wont find to much explanation here of what a certain option does , for that you can check the following three places :
My guide is based on these three + I added some slight modifications to it.
So let’s begin.