Looks like your mail account is hybrid in that it uses mail.dcsoundlab.com
for receiving, and smtp.sbcglobal.net for sending. Is AT&T (formerly SBC)
your ISP? If so, you should be using the new SMTP settings:
http://helpme.att.net/article.php?item=287
Don't change any of the settings for the incoming mail server.
--
Gary VanderMolen [MS-MVP WLM]
"DCAUDIO304" <> wrote in message news:318A8209-6672-4030-B82B-...
> This is the error message in getting, this has never happened befor and i
> have not changed anything. please advise.
>
> The 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 ''. Subject 'Re: Re:Re:
> Re:Re: Re:Re: dust caps quotations and motor photos', Account:
> 'mail.dcsoundlab.com', Server: 'SMTP.sbcglobal.net', Protocol: SMTP, Server
> Response: '550 5.7.1 Access denied', Port: 25, Secure(SSL): No, Server Error:
> 550, Error Number: 0x800CCC78