Sorry for posting this multiple times in different threads, but I think it can help many people that like me were clueless as to how to set up their Bellsouth emails on their android devices.
I found the solution in androidforums.com. Here's the link (go to the las post at the bottom): Bellsouth Email Settings? - Android Forums
Basically, this is what I did:
Incoming mail server type: POP3
Incoming (POP): pop.att.yahoo.com
Incoming User Name: Full AT&T email address, including domain (e.g. yourname @ bellsouth.net, but without the spaces... the forum won't let me type it correctly because I'm new here)
Incoming mail port #: 995, secure connection (SSL) checked
Outgoing (SMTP): smtp.att.yahoo.com, with authentication (same user and password as POP)
Outgoing User Name: Full AT&T email address, including domain (e.g. yourname @ bellsouth.net)
Outgoing mail port # 465, secure connection (SSL) checked
I was connected to wifi at the time I set it up.
Good luck!