Incomming Fine - Outgoing No Go

[drdb]

I'm new to Exchange. I am running Small Business Server and just got exchange running and have been fighting outgoing e-mail every since. I can receive e-mail from outside the domain and all e-mail works fine inside the domain. When I try to send outside the domain I get an
550 5.7.1 error mail address rejected by server.

I think everything is correct with the domain host (mx record etc.) because I can telnet into the server from outside and the mail.domain.com responds correctly to a ping.

Since I'm new to exchange I downloaded setup instructions from

http://www.christensen-software.com/

support/exchg2000config.pdf and followed them. They seemed pretty good and followed technet directions pretty well.

Any help would be great
thanks

 

[jsd2003]

Can you tell which server is generating the rejection? The complete error message should give clues.

If it's the recipient's, go to

http://www.dnsstuff.com

and enter your mail server's address in the spam database lookup. "Mail rejected by server" sounds like an anti-spam tactic.

If it's yours, check the event log and head to support.microsoft.com