Topic Last Modified: 2010-02-05

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

MSExchange Antispam

Alert Type


Rule Path

Microsoft Exchange Server/Exchange 2010/Common Components/Hub Transport and Edge Transport/Agents/Common

Rule Name

The Content Filter agent couldn't be initialized because sufficient memory couldn't be allocated for an internal buffer.


This Error event indicates that the Content Filter agent could not start because of insufficient memory. Specifically, there is not enough physical memory installed on the server to support all the applications that are running on the server.

User Action

To resolve this error, follow one or more of these steps:

  • Reduce the number of applications that are running on the server.

  • Restart the Microsoft Exchange Transport service. To restart the service:

    1. On the Start menu, click Run, type services.msc, and then click OK.

    2. In the Results pane, find the Microsoft Exchange Transport service.

    3. Right-click the service, and then click Restart.

  • Add more physical memory to the server.

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.