AT&T and Sbcglobal both are the equivalents. All things considered, first, we access accounts as Sbcglobal email, yet after a couple of updates and new highlights it converges with AT&T, and now it is known as ATT email. Along these lines, on the off chance that Sbcglobal email not working, at that point clearly AT&T additionally messed with a similar issue. https://www.yahoocustomer-service.com/blog/sbcglobal-email-not-working