Dickysolo--> This is a clients computer of mine. So I tried sending myself a message from her account. It sent from her outbox but I didn't get it. This has been going on a few days now, so I did more things to find out what the problem is. I deleted the account completely, and re-added it. It worked - for a day! Then I installed Thunderbird instead. It worked! Again, for a day. Now its at the same problem - sending successfully, no errors, but NO ONE gets them!
Is the problem in her computer? Or email account? Webmail works fine, and yes, that is not an option for her. If webmail works, the problem has to be in her computer right?