Mobile Me SMTP failure - how to fix

Question

This info is scattered around this forum, so thought I'd create a new topic.
My Mobile Me email on my 1st gen iPhone would not send even though it received just fine. I checked all the smtp settings and port 587 was correct, and the alternate smtp servers were ready to go, including the AT&T one for use when away from home. But no joy using WiFi at home, even though the same account works fine at home on my MacBook.
The first thing to check is whether the account address is [email protected] or [email protected] If the former, you should definitely do the following: delete the entire Mobile Me account from your phone and re-create it. It should then default to [email protected]
I did it easily in about 40 seconds and lost no contacts, calendars or mail, despite dire warnings to the contrary, and it sends just fine now over my home WiFi (via Comcast).
-dan

Answer 1

Thanks for your help, but I already did that and it did not all get removed as I said before.A .dll is missing.On the control panel if you right click mouse on MobileMe Icon, and try to Open, you get this message "AppleSyncPref.exe wasn't found because of missing .dll. So I go round and round and the message of previous note, goes on and on.