This should be a simple one:
We have an inhouse mail server, so our outlook users hit it locally.. mailserver.mydomain.local
But smartphone and laptop users need to be able to hit it from inside and outside. I assume that a simple solution is to set up laptops and smartphones to hit the external address mail.mydomain.com and then set a record on my internal DNS server to resolve mail.mydomain.com to its local IP address.
Is this an effective solution, and can you tell me how I would set it up in (windows server 2008 R2) DNS?