The correct settings are given here:
http://www.att.com/esupport/article.jsp?sid=KB401738
Not only should the sending port be 465 instead of 35, but the
SSL option must also be enabled.
Gary VanderMolen, Microsoft MVP (Mail)
"jwhardin99" wrote in message news:F74D4E56-E2F0-4E12-A4BF-...
Windows Mail and ATT has been working fine together, until recently. I am
not allowed to send mail anymore. It still receives fine. I received the
error message below.
The connection to the server has failed. Subject 'st . Agnes', Account:
'mail.bellsouth.net', Server: 'smtp.att.yahoo.com', Protocol: SMTP, Port: 25,
Secure(SSL): No, Socket Error: 10013, Error Number: 0x800CCC0E