[CentOS] postfix and spam, I am impressed

From: Les Mikesell <lesmikesell at gmail.com>

>>  Then add user management, webmail, webmail extensions that enable users to 
> manage their own settings, antispam policies, vacations, addressbooks and 
> whatnot.
> 
> I think you just described ClearOS....

Or Zimbra...

JD