We are running Windows Server 2003 and Exchange 2007.
Our AD domain got named (somewhat improperly) at first and we went ahead and used that name. No harm, except possibly now...
Our internal mail server maps to a name like exchange.domainname.com
It is completely accessible from inside the network. I just tried accessing it from outside with no luck. I then tried pinging the mail server by that name, then realized no DNS record exists to map that name to our external IP.
Here is the problem...
Our actual, registered domain name would be domainnameinc.com, not domainname.com
Since our internal domain name differs from the external, and someone has already registered our internal domain name, what can I do about creating a record that points our Exchange server to our outside IP?
Are we talking about having to rename the domain?