I am presently at another Comcast location and my mac mail still won't work. Reading some online chats, one person suggested going to Network Port Configurations from the apple menu/system preferences/network/show pop-up menu. well, i get as far as network and can find no "show" pop-up menu and spotlight cannot find Network Port Configurations.
mac mail won't connect to the Comcast POP or smpt servers
So your saying that you have comcast at home and it works fine from this machine?
If you mail works fine at home, then if it doesn't work on the road, it most likely isn't your machine. It is some other problem:
-- with the other network
-- perhaps comcast is preventing foreign mail from working.
Beth's experience & help
You need to contact comcast.