our internal Network ist domain.local. Now we need an DNS Entry, that office.domain.com points to our Exchange-Server, internal and External. External ist Works.
When i add a new zone domain.com to our dns ans make an A_record that points to our exchange, it works too ... BUT ...
All other resolution to external hosts unter domain.com (www.domain.com) now cannot be resolved in the internal network.
How can i Configure the DNS that only the office.domin.com were resolved internal, all other requests has to be forwarded to the external Nameserver??