Topic Last Modified: 2010-02-15

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


Alert Type


Rule Path

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

Rule Name

The transport process could not load poison message information from the registry. Access to the registry failed with the specified error.


This Error event indicates the Microsoft Exchange Transport service could not load poison message information from the registry on the Hub Transport server or Edge Transport server.

Poison message information is stored in the registry at HKEY_LOCAL_MACHINE\Software\Microsoft\ExchangeServer\V14\Transport\PoisonMessage.

This error may be encountered due to a permissions issue. By default, the following permissions are granted to this registry key and all sub-keys:

  • Administrators: Full Control

  • System: Full Control

  • Network Service: Full Control

These permissions are usually inherited from the registry key HKEY_LOCAL_MACHINE\Software\Microsoft\ExchangeServer\V14\Transport\.

User Action

To resolve this error, verify the following permissions are granted to the registry key HKEY_LOCAL_MACHINE\Software\Microsoft\ExchangeServer\V14\Transport\PoisonMessage:

  • Administrators: Full Control

  • System: Full Control

  • Network Service: Full Control

Resolve your issue by using self-support options, assisted support options, and other resources. You can access these resources from the Exchange Server Solutions Center. From this page, click Self-Support Options in the navigation pane to use self-help options. Self-help options include searching the Microsoft Knowledge Base, posting a question at the Exchange Server forums, and others. Alternatively, in the navigation pane, you can click Assisted Support Options to contact a Microsoft support professional. Because your organization may have a specific procedure for directly contacting Microsoft Technical Support, be sure to review your organization's guidelines first.

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.