On Sun, February 24, 2008 09:51, ckeeter@comcast.net wrote:

I've been getting my email on Ubuntu box for a while, Fetch gets the mail and postfix sends it out, Recently Comcast has been forcing me to use the 587 port for sending mail. and I'm at a loss on how to get it to work in postfix. I can't even send mail to a 3rd part mailhost, so they have locked me out of port 25.

Has anyone else had this problem and solved it and can point me in the correct direction, this has been driving me crazy.

I've heard of this problem before from Comcast users. You're not getting an internet connection, you're getting manged, filtered services.

Which server are you trying to relay out through? It has looked to me like they won't let you use any outbound mail server except theirs, no matter what port you try. (I suppose encrypted traffic to an unusual port might get through, but I'm surprised they allow ssh.)