Distribution list errror messages

[Guest]

I have a distribution list of 77 people. It remains in my outbox and I
cannot send it. I get the attached error message. If I remove the offending
email address and try to resend the I get the same message with another
address, and so on and so on. Any suggestions? Here is the error message:

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 '(e-mail address removed)'. Subject 'PMC-Red
Sox', Account: 'mail.comcast.net', Server: 'smtp.comcast.net', Protocol:
SMTP, Server Response: '450 [TEMPFAIL] destination not valid within DNS',
Port: 587, Secure(SSL): No, Server Error: 450, Error Number: 0x800CCC79

 

[Gary VanderMolen]

The error message is correct. Although there is a domain registration
for ccconsulting.com, that domain is currently not being hosted, so it
has no mail service.