Before I switch my MX record to move my companys mail from our exchange 2000 setup to our new scalix mailserver, I'd like to be able to test the new setup.
Our DNS is hosted by our ISP, so if I called them and had them setup a dummy MX record - something like example.com - that pointed at the new mailserver would that work? Assuming I setup the new mailserver to accept the dummy hostname?
Make sense?