I wonder if this means comcast (and others?) users might have to configure 2 mail accounts on the iPhone, one for EDGE and one for wifi.
OK Now I have comcast email working without problem. Whether this is because comcast is working better or my iPhone is correctly configured I do not know. But here are my settings:
Incoming Mail Server
Host Name: mail.comcast.net
User Name: xxxxxxxx
Password: **********
Outgoing Mail Server (SMTP)
Host Name: smtp.comcast.net
User Name: xxxxxxxxxx (fill this in with your username)
Password: ************* (fill this in with your password)
Under advanced Settings
Incoming Uses SSL: ON
Outgoing Uses SSL: OFF
Delete from server: Never
I hope this works for you. I was able to send a photo from my iPhone to my work email. Tried it twice and no problems.
Glenn