So I have narrowed my MobileMe/ Mail app issue to AT&T blocking the SMTP server. smtp.mac.com smtp.me.com port 25 port 587 and even my personal server smtp.pmcar.com are all blocked so I am assuming they all are. If this is true is there another way to send with the Mail app? I have put in a research order with local IT and AT&T, but I doubt they will help as they have not thus far. Entourage does not work either... the issue is with the ISP.