MobileMe smtp server keeps going offline
I have 11 email accounts (due to the consulting work I do) with various services (Gmail, AOL, Exchange, etc.) Recently, the only mailbox I'm having problems with is MobileMe! My outbound messages are stuck in Send mode and when I check, I find that the SMTP server is offline. I reenter the password info, try checking and unchecking SSL, etc. and sometimes it works, and other times it doesn't. I recently upgraded to Liion but can't say for sure that the problem started with the upgrade, but it is a very recent phenomenon as I would have noticed it earlier. MobileMe is my most frequently used mailbox.
MacBook Pro 15, Mac OS X (10.7), 6 GB memory