Problems Sending Email

[Jon]

Whenever I try to send an email message, I get this error
message.

Server Response: '550 relaying mail to hotmail.com is not
allowed', Port: 25, Secure(SSL): No, Server Error: 550,
Error Number: 0x800CCC79

It's just on one of my computers though. On another
computer using the same email account, I'm able to send
mail without errors. Any help will be greatly appreciated.

Jon

 

[Jeff Stephenson [MSFT]]

You probably need to authenticate to your outgoing server. You can do so on
the "Outgoing Server" tab for your account.