When we upgraded out NT domain we had a DNS server with a local zone in it. *.IRM when we installed AD we made the domain IRM.LOCAL. Both zones live on the GC only the irm.local is on other DNS servers.
Here's the problem. Exchange see's the GC server as dc1.irm not dc1.irm.local. If i try to remove the .irm zone from the DNS server it stops mail. I want to get rid of the .irm zone to make things cleaner and also i think it maybe causing another issue. If i change the operations master role etc. to another server with the name of dc2.irm.local (with GC) will it allow exchange to work properly and let me delete the .irm zone?