Problems sending external mail on outlook using pop3 server

I have this problem.

Problems sending external mail on outlook using pop3 server.

The message error is 554 Relay rejected for policy reasons.

Subject: Problems sending external mail on outlook using pop3 server

Sending mail from Outlook to Domino POP3 server? Does your Domino server allow authenticated users to relay off of it? Is there a valid range of IP Addresses listed in the Configuration Document that are allowed to relay off of the server?

Gregg

Subject: RE: Problems sending external mail on outlook using pop3 server

Yes, in the Configuration Document, it does allow a ll authenticated users to relay.

There is no IP address stated anywhere… Where shall I find it?