I think I broke something ----
Have existing network Windows 2003 Server Domain. Single DC, separate exchange server.
I was working in ADSIedit to repair a problem with a new email user added and not being able to create an outlook client connection withthe error - "The name could not be resolved. The name could not be matched to a name..."
Fixed several problems along the way with the RUS and DNS.
But now NO ONE can resolve to the exchange server. Existing outlook connections still work.
LDAP.exe cannot see the exchange server, just the DC.
I was workng in ADSIEdit with several purportedserach entries, not sure where now.