[ubuntu] Postfix SMTP TLS configuration

view story

http://ubuntuforums.org – I'm sure this has been asked a zillion times, but I have also scoured the net for a zillion hours with no luck. Basically, I am trying to set up a mail server. The POP3 part works perfectly fine (yay!) but the SMTP is the biggest problem. I'm pretty sure that port 25 is being blocked by my ISP (haven't checked since i don't know how) because with a standard config, I would be able to receive mail but not send. Plus I don't want to use port 25 anyway since I want my outgoing mail to be encrypted. So what did i do? I followed this tutorial (TO THE LETTER): https://help.ubuntu.com/community/Pos (Hardware)