Are any of your other DC's marked as global catalogs? I believe Exchange needs that in order to see and use the DC. In AD Sites and Services is where you can accomplish this. As I recall it is a checkbox under NTDS.
\\Steve// -----Original Message----- From: mqcarp [mailto:mqcarpen...@gmail.com] Sent: Tuesday, November 24, 2009 4:29 PM To: MS-Exchange Admin Issues Subject: "Directory Access" DC Discovery My EXCH03 server is only finding one of our DC. I am leery of adding the other one manually. I would rather see why it is not identifying the second one. I have done some research and do not see anything that really makes this clear. Is there a "normal" reason this second DC would not show?