Can't send some e-mail

[turckster]

Just bought a new computer w/Vista, set up e-mail account with help from
provider customer support(Windsteram), some e-mails end up in out box and
just stay there.
If I forward an e-mail to one or 2 people it will go thru ok, but if same
e-mail is forwarded to 5 people it ends in outbox and there is an error
message. I did not have this problem with Outlook Express on the old
computer(Windows XP). Any help would be appreciated.
turckster
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 '1shelties2embarqmail.com'. Subject 'Fw:
signs you're having a bad day', Account: 'pop.windstream.net', Server:
'smtp.windstream.net', Protocol: SMTP, Server Response: '550 Invalid
recipient: <1shelties2embarqmail.com>', Port: 25, Secure(SSL): No, Server
Error: 550, Error Number: 0x800CCC79

 

[Gary VanderMolen]

As the error message says, the recipient 1shelties2embarqmail.com
is not a valid email address. There is no @ symbol. Try correcting his email
address to (e-mail address removed).