Mail.app - send email issues: Mail or Router settings?

[indigoflowAS]

My main email account is through my university. it is IMAP from what i can tell. the situation is that i can cleanly and easily send email from school, my apartment right off campus...but when i go back home, i simply cannot send email though mail.app

should i be worrying about the mail.app settings or the router?

 

[sk3pt1c]

i'm guessing it's because you're accessing your account from outside the university intranet so you probably need some extra info or something like that
maybe their email system is set up to not allow access from programs like mail and outlook express from the outside and you can only access it via web browser.


ps.i'm from athens too,only the original one in greece
how come that name was given to that city?
i've always wondered,a lot of greeks there or something?