New ATT server settings do not work with Outlook 2003 – fixable?

Have now tried to change to new ATT server settings from sbcglobal 3 times. Doesn’t work. Either incoming our outgoing mail fails. Talked to ATT on phone (wasn’t that fun) and their tech rep in India said told me to put the settings back to the old sbcglobal, and that ATT would have the problem fixed before the final transfer-over date. Anyone have any ideas about how to fix this? What a pain. Here are the new settings I was given:
Incoming: POP 3, pop.att.yahoo.com
Outgoing: SMTP smtp.att.yahoo.com
Incoming port: 995, SSL checked
Ougoing port: 465, SSL checked

Thanks for any light shed on this.