Users do not appear in the Global Address List, users cannot connect to their Exchange mailboxes, event ID 8331 is logged, and e-mail names cannot be resolved in Exchange Server 2003

On a computer that is running Microsoft Exchange Server 2003 and that has more than one logical processor, you may find that Active Directory updates from Exchange 2003 no longer work correctly. The Recipient Update Service does not configure all the Exchange attributes for the user accounts. As a result, these users may not appear in the Global Address List or may not be able to connect to their Exchange mailboxes. Additionally, you may find that event ID 8331 error messages that are similar to the following are repeatedly logged to the application event log:

Type: Error
Source: MSExchangeAL
Category: Address List Synchronization
Event ID: 8331
Description:
The service threw an unexpected exception which was caught at Drive:\Titanium\Dsa\Src\Lra\Abv_dg\Lservagent.cpp(4511)

You may also receive event ID 8331 error messages that contain a description that reports than an unexpected exception occurred in the Active Directory Connector (Adc.exe) and in the Lotus Notes Dirsynch Connector component (Addxa.dll).

When you click Check Name while configuring Exchange e-mail accounts in Microsoft Outlook, you may receive an error message that is similar to the following:

This problem may occur if an internal class incorrectly processes certain threads that run at the same time.

To resolve this problem, obtain the latest service pack for Exchange Server 2003. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

To work around this problem, restart the appropriate service. For example, if the source of the event ID error message that is logged to the application event log is listed as MSExchangeAL, restart the System Attendant service.

This problem was first corrected in Exchange Server 2003 Service Pack 1.

For additional information about the standard terminology that is used to describe Microsoft software updates, click the following article number to view the article in the Microsoft Knowledge Base: For additional information about the naming schema for Exchange Server updates, click the following article number to view the article in the Microsoft Knowledge Base: