XADM: Disjoint Namespace Causes LDAP Errors in Exchange System Manager (318552)

SYMPTOMS

In certain Active Directory topologies, you see the following events in the Application event log:

Event ID: 9188
Source: MSExchangeSA
Description: Microsoft Exchange System Attendant failed to read the membership of group 'cn=Exchange Domain Servers,cn=Users,dc=server,dc=domain,dc=dom'.
Error code '8007203a'.
Please check whether the local computer is a member of the group. If it is not, stop all the Microsoft Exchange services, add the local computer into the group manually and restart all the services.

Event ID: 9543
Source: MSExchangeIS
Description: Unable to create Public Folder proxy object for folder xxxxxxx in the Active Directory.

CAUSE

These errors can occur when there is a disjoint namespace, where one or more child domains are not under the root domain in the forest.

RESOLUTION

To resolve this problem, obtain the latest service pack for Microsoft Exchange 2000 Server. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

301378 XGEN: How to Obtain the Latest Exchange 2000 Server Service Pack

The English version of this fix should have the following file attributes or later:

Component: System Manager

File name	Version
Exmgmt.exe	6.0.5770.55
Mad.exe	6.0.5770.55
Exadmin.dll	6.0.5770.55
Exsp.dll	6.0.5770.55
Exwmi.dll	6.0.5770.55

NOTE: Because of file dependencies, this update requires Microsoft Exchange 2000 Server Service Pack 2.

STATUS

Microsoft has confirmed that this is a problem in Microsoft Exchange 2000 Server. This problem was first corrected in Microsoft Exchange 2000 Server Service Pack 3.

MORE INFORMATION

For example, consider the following topology.

Domain Type	Domain	DC
root	root.forest.com	rootdc.forest.com
child	child.forest.com	childdc.forest.com

Place an Exchange 2000 Server in the child.forest.com domain. A number of errors appear in the event log, and the DSAccess page in Exchange System Manager does not display correct information.