So I'm pretty sure my school uses Microsoft Exchange Server (which apparently doesn't work with iPhone Mail client). However, I decided to try to set up my account under the IMAP4 settings for ***** n' giggles and see what happened. I receive mail just fine, however I can't send anything, it gives me outgoing server errors. Is that the limitation of Exchange on the iPhone, or am I not supposed to be getting any email period? Just curious. Thanks.