If yahoo or att deleted the account ending in bellsouth.net, they didn't do so because it hadn't been used in nine months. It was used daily up until I was unable to access it ten days ago.
I received newletters and other subscriptions there. I had folders of saved materials, and used this address as a recovery address for another account.
When I joked that it might have somehow become 'outdated,' I was referring to the fact we no longer use att for phone or internet service.
What I don't understand is why an account that had been working perfectly for years suddenly became unusable, especially since the original ID/password combination for the email account still works for the att product site.
I'd still like to recover the account, but if that's really impossible, let me know.
Anyway, thanks for your help! :)