Hello,
I am settings up mailserver using Postfix.
Well, are your clients connecting to this server to get their email or to send email ?
Anyway, to be able to reach Postfix you need to open port 25.
and for pop3 port 110 or imap, port 143 I think. Also have a look into the mentioned tutorial. Regards, Ruprecht ------------------------------------------------------------------------------------------ Ruprecht Helms IT-Service & Softwareentwicklung Tel./Fax +49[0]7621 16 99 16 Web: htp://www.rheyn.de