Some recent upgrades have generated some errors when customers try to access their email accounts. The first thing you'll want to try is Resetting your Email Password using myAT&T.
If that doesn't resolve your issue, the information here should help with mismatch errors, problems syncing or even just signing in.
Learn how AT&T High Speed Internet customers can protect themselves and up to four desktop or laptop computers with AT&T Internet Security Suite powered by McAfee.
Learn how to address trouble you may be having with your bellsouth, sbcglobal, and legacy email address accounts.
Learn how to set up and access your AT&T email account.