TonyLima wrote:
So I have this message sitting in the outbox. I’ve tried sending it via half a dozen SMTP servers with no luck. Yes, I’ve checked the AT&T port settings – they’re correct. Any ideas? Thanks. - Tony
The problem has largely disappeared for me. I really can't say what removed it. I tried many things. (See this thread: https://discussions.apple.com/thread/3057308?answerId=15332394022#15332394022) None seemed to make a difference. Finally, in this connection and in connection with another problem, I was encouraged to try setting up a new user account. I did that, and both problems seemed to disappear, but when I went to make the new account my auto login account I lost all my settings, folders, and files. I asked for help in migrating over to the new account. Meantime, I returned to the old account. The help never came, I have remained on the old account ever since, and both problems have disappeared.
Occasionally -- on the order of once every, two or three days -- sending hangs up. When it does, a single click on "try with selected server," very rarely two or three, will cause the mail to go out. Another thing that's changed is that Mail now notifies me immediately when sending fails. I no longer have to wait, watching the wheel spin endlessly, for the notification. I can deal with the problem immediately.
At the end of the thread referenced above it was suggested that I set up a gmail account for use should the problem become serious again. I haven't done that, yet, but the person making the suggestion pointed out that there's an option on gmail to to have mail sent with an alternative address, so I could use gmail but have it sent with my usual email address. I don't know if that would be of any help to you, but I intend to give it a try.