Topic Last Modified: 2010-01-27

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:

From the Operations Console, double-click this alert, and then click the General tab. Review the description of the alert that includes the variables specific to your environment.
From the Operations Console, double-click this alert, and then click the Alert Context tab. Review the logged events that meet the criteria of this Operations Manager alert.

Details

Product Name	Exchange
Product Version	14.0 (Exchange 2010)
Event ID	1023
Event Source	MSExchange ActiveSync
Alert Type	Warning
Rule Path	Microsoft Exchange Server/Exchange 2010/Client Access/ActiveSync
Rule Name	Exchange ActiveSync could not access a mailbox on a Mailbox server because the Mailbox server is offline.

Explanation

This Warning event indicates that Microsoft Exchange ActiveSync tried to access a mailbox on a computer that has the Mailbox server role installed, but detected that the Mailbox server cannot handle requests. This may be caused by the following conditions:

A Microsoft Exchange database is dismounted.
The Mailbox server is offline for maintenance.

User Action

To resolve this event, consider the following:

If this event is logged infrequently, or only during scheduled downtime for a Mailbox server, no user action is required.
If this event is frequently logged, do one or more of the following:
- Make sure that the databases on the Mailbox server are mounted.
- Review the Application log on the Mailbox server to determine the root cause of the Mailbox server being offline.

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.