Topic Last Modified: 2010-07-07

The Microsoft Exchange Server 2010 Management Pack for System Center Operations Manager monitors the Windows Application log on computers running Exchange 2010 and generates this alert when the events specified in the following Details table are logged.

To learn more about this alert, in Operations Manager, do one or more of the following:


Product Name


Product Version

14.0 (Exchange 2010)

Event ID


Event Source


Rule Path

Microsoft Exchange Server/Exchange 2010/Mailbox/Database Copy Mounted

Rule Name

Couldn't load the Exchange store because the distinguished name (DN) of the message database doesn't match the DN of directory.


This Error event indicates that the Exchange mailbox database has a domain or organization name that is different from the name that is stored in Active Directory directory service. Typically, this situation occurs in server recovery situations.

The restored database cannot be part of a different Exchange organization.

User Action

To resolve this problem, you have to reinstall the server that is running Exchange by using the organization name that is displayed in the event ID 1088 error message.

For an overview of ADSI Edit, see ADSIedit Overview in the Windows Server TechCenter.

For more information about this event, see MSExchangeIS 1088: Cannot mount database because of invalid legacyExchangeDN.

For More Information

If you are not already doing so, consider running the Exchange tools created to help you analyze and troubleshoot your Exchange environment. These tools can help make sure that your configuration aligns with Microsoft best practices. They can also help you identify and resolve performance issues, improve mail flow, and better manage disaster recovery scenarios. To run these tools, go to the Toolbox node of the Exchange Management Console. To learn more about these tools, see Managing Tools in the Toolbox.