Situation: we have an internal domain name that is not what we are registered with. Similarly, our exchange server(2000) machine name different than our MX record, so the greeting did not match the dns MX record.
I researched how to change this, came up with a number of possible solutions. Eventually, I simply changed the FQDN and masquerade domain in the advanced delivery section of the Default SMTP VS. This has accomplished what I set out to do, which is to have the greeting match the MX record, however, I am wondering what its effect will be internally.
If the domain's internal DNS server and zone are named differently, does it matter what the SMTP VS has as the domain and FQDN of the server? The MTA seems not to care as it is handling the mail flow and messages are flowing to the intended recipients(in and out). Is it the case that the VS is just an interface point, and that its configuration is independent?