Ipowerweb and outgoing mail server issues

Question

getting my POP account on my iPhone to send mail successfully has proven to be difficult.
why is it that on my old Nokia E61 my incoming and outgoing mail server settings "mail.mydomain.net" worked regardless of whether i was on edge or wifi -- yet on my iPhone the only way i can send email is to turn wifi off, and input "cwmx.com" as my outgoing mail server and send sloooowly over edge?
i guess my question is, what is different about the way the iPhone connects to different servers, if my old phone did not have any issues with it at all - and how can i remedy this? shouldnt it be as simple as sycing the settings from my POP account on my G5? what am i missing here...and is this specific to ipowerweb hosting?
thanks

Answer 1

aegez,
As a point of clarification, if you are going to use Port 25 on EDGE you have to use cwmx.com. Many networks filter port 25 traffic because of port 25 traffic has been abused by people sending unsolicited bulk email (aka spam). AT&T's EDGE network is not the only network to filter port 25.
The iPhone in some situations will try other common ports, many of which will require authentication.
If you are using an outgoing mail server that requires authentication on a port besides port 25 it should work on both WiFi and EDGE in most situations. The exception would be on networks that filter traffic on all ports as a security major, such as some work environments.
This article includes more information on outgoing mail:
http://docs.info.apple.com/article.html?artnum=305634
This article indlues settings for some ISPs:
http://docs.info.apple.com/article.html?artnum=306074
Hope this helps,
Nathan C.