On Thu, 17 Nov 2005 09:47:28 GMT, Fred wrote:

> I set up a 2nd verizon account and get the following error message when
> trying to send email from it. Any ideas how to get it straightened out?
>
> The message could not be sent because the server rejected the sender's
> e-mail address. The sender's e-mail address was 'sample@verizon.net'.
> Subject 'Email Test', Account: 'sample@verizon.net', Server:
> 'outgoing.verizon.net', Protocol: SMTP, Server Response: '550 5.7.1
> Authentication is required to send mail as <xts738xg@verizon.net>', Port:
> 25, Secure(SSL): No, Server Error: 550, Error Number: 0x800CCC78
>
> (Note that I changed the email addresses in the above, but the error message
> is otherwise unchanged.)


Fred,

My guess is you've run into Verizon's header mismatch problem. V.
requires that the From field matches the envelope !Mail From
field. Thus, if you've set up your new account as an alias of a
master account, and your mailer uses the master account to
formulate the email envelope, you won't get in.

This is unnecessary, since the login should be enough to protect
the account against intrusion, and the practice causes an
annoying bunch of extra configuration on the user end.

Paul