Note: Your email address works as a user ID in my AT&T so you can manage your mail account profile. You may also see your... moreNote: Your email address works as a user ID in my AT&T so you can manage your mail account profile. You may also see your user ID referred to as an AT&T user ID or a Member ID email address. How to fix att.net email login, at&t outage map and att uverse bill pay issues