Thanks, Skip.

I just now tried that and still failing...

Tools>Accounts>Mail tab >selected account>Property>Server tab>Settings>
Check "Log on using", entered xts738xg@verizon.net and the master account
password.

Then when sending email, a dialog box comes up asking for the password. I
enter the master password and it fails.

"Skip Ford" <skip.ford@verizon.net> wrote in message
news:wEYef.5193$Rb.276@trndny01...
>
> In 0.verizon.email.discussion-general Fred <testing@testing1212mouse.com>
wrote:
> > Server Response: '550 5.7.1 Authentication is required to send mail
> > as <xts738xg@verizon.net>'
>
> Did you enable authentication as the error says? You must authenticate
> as 'xts738xg@verizon.net' not another Verizon username.
>
> --
> Skip, who doesn't work for Verizon.