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If you use Active Directory User and Computers to delete an Exchange Server 5.5 mailbox from Windows 2000 Active Directory, the deleted mailbox is replicated back to Active Directory. This behavior occurs only if Active Directory Connector (ADC) between the Exchange Server 5.5 and Active Directory is a two-way Connection Agreement that is configured to save deletes to a CSV/LDF file.
This problem occurs because the ADC is disabling the Exchange Server 5.5 mailbox (as expected), but it does not update the ReplicatedObjectVersion attribute. The ADC sees the deletion in Active Directory, it tombstones the ADCGlobalNames attribute on the Exchange Server 5.5 object. However, because ADC does not update the ReplicatedObjectVersion attribute, it now treats this deletion as the newest change. On the next cycle, ADC replicates the mailbox from Exchange Server 5.5 back to Active Directory.
Cumulative Patch Information
To resolve this problem, obtain the March 2003 Exchange 2000 Server Post-Service Pack 3 (SP3) Rollup. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
813840 XGEN: March 2003 Exchange 2000 Server Post-Service Pack 3 Rollup
A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem.
If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, submit a request to Microsoft Customer Service and Support to obtain the hotfix.
Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:
Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language. Component: ADC
The English version of this fix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.
NOTE: Because of file dependencies, this update requires Microsoft Exchange 2000 Server Service Pack 3 (SP3). For additional information, click the article number below to view the article in the Microsoft Knowledge Base:
301378 How to Obtain the Latest Exchange 2000 Server Service Pack
Microsoft has confirmed that this is a problem in Microsoft Exchange 2000 Server.