cant send, what this??

[:]

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 'test', Account:
'pop.secureserver.net', Server: 'smtpout.secureserver.net', Protocol: SMTP,
Server Response: '553 Sorry, that domain isn't in my list of allowed
rcpthosts.', Port: 25, Secure(SSL): No, Server Error: 553, Error Number:
0x800CCC79

 

[Gary VanderMolen]

Try changing the outgoing (SMTP) server port to 80 (instead of 25).
For directions, see
http://products.secureserver.net/email/email_outlookexpress.htm