AT&T email service specially used in USA. AT&T email service has the collaboration of Yahoo email and offering more exceptional service as well offer for the AT&T email services. AT&T email service is the combination of Yahoo mail services and other email service. You can achieve both fixed and flexible telephony from the AT&T email services. If you have any query about AT&T email service the you can call freely at AT&T email tech support phone number +1-8009821502.