Sending, receiving, and organizing email in Outlook.com
To better understand the situation, could you please clarify what exactly happened to your Bellsouth account? Did the account disappear from Outlook, or are you unable to sign in to your Bellsouth email address altogether? Also, were you accessing your Bellsouth emails through Outlook.com, the Outlook application, or directly through AT&T/Yahoo webmail?
Additionally, have you tried signing in to your Bellsouth email address directly at https://currently.com? If so, what happens when you attempt to sign in? This distinction is important because Bellsouth email accounts are managed by AT&T, while Microsoft Outlook may only be used to access them. Your answers will help determine whether this is an Outlook configuration issue or an account recovery issue that AT&T needs to address.