imap.mail.att.net is not responding for iPhone email
Not sure if anyone else still has this issue, but my Sbcglobal email on iPhone just stopped working a couple of days ago and I got the imap.mail.att.net is not responding message. I tried numerous fixes based around all the imap recommended settings but in the end deleting the account and re-adding it as a "Yahoo!" email account (using iPhone account defaults for Yahooo!) worked perfectly.