Alright, I'm having some trouble with Mail. I recently moved into my college dorm for the year, and in all the move-in hassle (needing a hub, network failures, multiple registrations, bad IPs, blocked ports, etc) I have almost everything working. The thing is, I can get email in Mail, but I can't send any. I get the attached error message every time. I thought this was the effect of having ports blocked on the KU network, but they have since been unblocked. I may ask one of the mac persons in my hall, but I figured I'd come here first, as I know for a fact that SOMEONE has to be using Mail.