Whenever I try sending e-mail to a certain group on Outlook Express, I get this message: The message could not be sent because one of the recipients was rejected by the server. The rejected e-mail address was '<someone@example.com>'. Subject: '<Test>', Account: '<Test>', Server: '<smtp.example.com>', Protocol: SMTP, Server Response: '550 <someone@example.com>... Relaying Denied', Port: 25, Secure (SSL): No, Server Error: 550, Error Number: 0x800CCC79 Okay so, "My server requires authentication" box IS checked, so that's not the problem. Running on Cogeco internet. And I'm pretty sure I'm using an 2003 version of Outlook. HELP ME PLEASE!!!