Mail.app and outgoing servers

Just got back home for the summer and suddenly I can't send emails out using Mail on my Mac.

When I try to send one, I get "cannot send message using the server smtp.gwu.edu."

I've tried using the other smtp options but I get the same message... this was never an issue before leaving for school and setting up my email==IMAP@gwu.eduIMAP@gwu.edu=IMAP@gwu.eduIMAP@gwu.edu/email account.

Any ideas on what to do?

EDIT Just realized I didn't mention this The issue occurred because I never set up the gwu.edu SMTP correctly... I can receive mail from that account but I can't reply to it. The other account I'm trying to send from is a .Macurl==http://=http:///url account.

You need to configure your mail client to use your home internet connection, not GWU's.

How do I do that?

[/noob]

Google your ISP's name and the name the mail client you use, and there should be plenty of information. If not, post here, and I'll tell you what to do.