I am receiving the error at the bottom in the Application log of my exchange server.
Here is some history on my environment:
HISTORY: About 6 months ago we had a 2000 domain with 2 domain controllers. I will call them DC1 and DC2. We also had 1 2000 exchange server (EX1). We upgraded DC1, DC2 and EX1 to 2003 server and Exchange 2003.
As part of the DC upgrade we used the 2003 rename tool to rename our first domain controller (DC1). This machine held all of our FSMO roles. After the rename we noticed some strange problems. As a result we have built a new DC (DC3) and transferred all FSMO roles to that machine. Everything appears to be working correctly with the new DC (DC3). We have not yet run DCPROMO on DC1 to demote it. We are planning on doing that soon.
Our current Exchange 2003 environment is configured with one front end server running OWA and 2 back end servers with mailboxes and public folders.
PROBLEM: So the error message below indicates that Exchange cannot reach our original DC (DC1). It has the FQDN of the DC before we used the rename tool to rename the system. This name no longer appears in DNS or WINS, the new name of the system appears in both places. The error below is being generated every 5 minutes.
REQUEST: Does anyone know where this name may be coming from? Any ideas on how to fix this issue?
Event Type: Error
Event Source: MSExchangeAL
Event Category: Service Control
Event ID: 8063
Time: 3:13:42 AM
Could not read the root entry on directory <FQDN OF DC1 PRIOR TO UPGRADE>. Cannot access configuration information. DC=<DOMAIN NAME>,DC=com
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