Can not send any e-mails

I keep getting this error message:

(Any Suggestions)

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 'Fw: Your
Online Booking', Account: 'btinternet', Server: 'smtp.btinternet.com',
Protocol: SMTP, Server Response: '530 authentication required - Your email
could not be sent. To fix this you must make a simple change to your email
(known as SMTP authentication). For advice visit www.btyahoo.com/smtp', Port:
25, Secure(SSL): No, Server Error: 530, Error Number: 0x800CCC78

On Tools, Accounts, choose the account, Properties, there is a checkbox for
using authentication.

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Mark L. Ferguson
..

"Marky." <Marky.@discussions.microsoft.com> wrote in message
news:A8777D83-6280-4D93-B17D-...
> I keep getting this error message:
>
> (Any Suggestions)
>
> 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 'Fw:
> Your
> Online Booking', Account: 'btinternet', Server: 'smtp.btinternet.com',
> Protocol: SMTP, Server Response: '530 authentication required - Your email
> could not be sent. To fix this you must make a simple change to your email
> (known as SMTP authentication). For advice visit www.btyahoo.com/smtp',
> Port:
> 25, Secure(SSL): No, Server Error: 530, Error Number: 0x800CCC78

Mark,

Sorry still no joy, what am I doing wrong.

"Mark L. Ferguson" wrote:

> On Tools, Accounts, choose the account, Properties, there is a checkbox for
> using authentication.
>
> --
> Was this helpful? Then click the Ratings button. Voting helps the web
> interface.
> http://www.microsoft.com/wn3/locales...eAPostAsAnswer
> Mark L. Ferguson
> .
>
> "Marky." <Marky.@discussions.microsoft.com> wrote in message
> news:A8777D83-6280-4D93-B17D-...
> > I keep getting this error message:
> >
> > (Any Suggestions)
> >
> > 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 'Fw:
> > Your
> > Online Booking', Account: 'btinternet', Server: 'smtp.btinternet.com',
> > Protocol: SMTP, Server Response: '530 authentication required - Your email
> > could not be sent. To fix this you must make a simple change to your email
> > (known as SMTP authentication). For advice visit www.btyahoo.com/smtp',
> > Port:
> > 25, Secure(SSL): No, Server Error: 530, Error Number: 0x800CCC78
>

"Marky." <Marky.@discussions.microsoft.com> wrote in message
news:A8777D83-6280-4D93-B17D-...
>I keep getting this error message:
>
> (Any Suggestions)
>
> 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 'Fw:
> Your
> Online Booking', Account: 'btinternet', Server: 'smtp.btinternet.com',
> Protocol: SMTP, Server Response: '530 authentication required - Your
> email
> could not be sent. To fix this you must make a simple change to your
> email
> (known as SMTP authentication). For advice visit
> www.btyahoo.com/smtp', Port:
> 25, Secure(SSL): No, Server Error: 530, Error Number: 0x800CCC78

It's a different error number but could it be related to the unannounced
change by BT which disallowed 'from' addresses other than your default
address - see
http://www.beta.bt.com/bta/forums/th...=2939&tstart=0

I believe that change was reverted but they might be tinkering again. I
don't use BTYahoo for mail but there is a link in that announcement to
the 'verification' process and also one onward from the link
www.btyahoo.com/smtp within the error message you quote.

Tom