Can’t upgrade your browser? We'll redirect you to the basic mail experience when you sign in. With basic mail, you can still access, view, and send email. You just won’t have access to many of the full version’s advanced features and tools.
Keep in mind that you can always switch back to the full email version by upgrading or switching your browser. From a supported browser, simply sign in to basic mail and select Switch to the newest AT&T Yahoo Mail from the upper-right corner.