F-Secure Protection Server Open Relay
we have a domino server and an F-Secure Protection Server in front of it to act as a Spam filter. When I check my SMTP status of the MX record it shows that the server is Open Relay. We have made the Domino mail server to reject open relay messaging but aparently the F-Secure Protection server that is the first entry point seems to be an open relay server.
How can we change this, so that our server doesn't appear as an open relay?