said by Krisnatharok:What does AT&T have do to with this? Are you opening up your Yahoo mail from an AT&T phone?
AT&T contracts with Yahoo! to provide email services for AT&T users.
Yahoo! mail with AT&T's legacy 'pacbell.net'.
My old 'pacbell.net' accounts are still active, even after I quit using AT&T DSL service. They can be accessed via either IMAP, or the web, using any ISP.