When I set my a domain to "Local Mail Exchanger" for email routing I can (manually) send mail to the user fine. I can telnet to port 25 of the host and it will deliver messages. All good. Now when I set the domain to "Remove Mail Exchange" it will not do this anymore. Why? How do I still allow it to accept mail if the user does exist? It says user not found when the user is there and fine.