That server doesn't use port 25.
Use the account setting shown here:
http://helpme.att.net/article.php?item=10707
--
Gary VanderMolen, MS-MVP (Mail)
"Margaret" <Margaret@xxxxxx> wrote in message news:88B96E48-CF19-4C26-B3BB-9A79691BFC78@xxxxxx
Quote:
>I can receive email, but can't send, I get this error. I checked settings and
> they seem to be correct.
> Margaret
>
> Subject 'Quilt picture', Account: 'pop.att.yahoo.com', Server:
> 'smtp.att.yahoo.com', Protocol: SMTP, Server Response: '250 8BITMIME', Port:
> 25, Secure(SSL): Yes, Server Error: 250, Error Number: 0x800CCC7D