Vista - can not sen mail

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alThe message could not be sent. The authentication setting might not be
correct for your outgoing e-mail [SMTP] server. For help solving this
problem, go to Help, search for "Troubleshoot Windows Mail", and read the
"I'm having problems sending e-mail" section. If you need help determining
the proper server settings, please contact your e-mail service provider.

The rejected e-mail address was 'rlhbeaver@sbcglobal.net'. Subject 'Read:
Message', Account: 'pop.att.yahoo.com', Server: 'smtp.att.yahoo.com',
Protocol: SMTP, Server Response: '530 authentication required - for help go
to http://help.yahoo.com/help/us/sbc/dsl/mail/pop/pop-11.html', Port: 465,
Secure(SSL): Yes, Server Error: 530, Error Number: 0x800CCC78oha

Thanks for including a copy of the complete error message.
That error message is fairly self-explanatory.
You need to enable "My server requires authentication" as explained
here: http://helpme.att.net/article.php?item=285
In Windows Mail, you get to that setting by going to Tools > Accounts >
(select the account) > Properties > Servers.

Gary VanderMolen

"ALOHA" <ALOHA@discussions,micrisoft.com> wrote in message news:B7234490-CF65-49D0-A436-D7D24E62B531@microsoft.com...
>
> --
> alThe message could not be sent. The authentication setting might not be
> correct for your outgoing e-mail [SMTP] server. For help solving this
> problem, go to Help, search for "Troubleshoot Windows Mail", and read the
> "I'm having problems sending e-mail" section. If you need help determining
> the proper server settings, please contact your e-mail service provider.
>
> The rejected e-mail address was 'rlhbeaver@sbcglobal.net'. Subject 'Read:
> Message', Account: 'pop.att.yahoo.com', Server: 'smtp.att.yahoo.com',
> Protocol: SMTP, Server Response: '530 authentication required - for help go
> to http://help.yahoo.com/help/us/sbc/dsl/mail/pop/pop-11.html', Port: 465,
> Secure(SSL): Yes, Server Error: 530, Error Number: 0x800CCC78oha