Accessing ATT account on Windows Mail 2012

I recently signed on with ATT.  I added my email address to Windows Mail 2012 and cannot get it to work.  Is there anything different I need to add than a normal account for properties.  The one area I think may be the problem are the ports.  My entries for Servers are (POP3) inbound.att.net and outbound.att.net

Under Advanced Ports:  outgoing mail (SMTP) (465);   incoming mail (POP3) (995).

Please help, I feel like I'm back in the 1990s with Yahoo Mail, the ATT choice.

Thanks