|
|
|
|
|
|
by pmontra
3294 days ago
|
|
|
Details at https://www.att.com/esupport/article.html#!/email-support/KM... My guesses: Tumblr belongs to Yahoo. Yahoo had some agreement with AT&T to provide them services. The agreement is no more, AT&T customers can't use their AT&T email to login into Yahoo services anymore. I don't see why that should be technically our commercially necessary, but that's it. |
|
|