Topic Last Modified: 2010-02-22

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

Outbound authentication failed at the send connector. It may have failed to acquire a Kerberos ticket for the destination target name.


This Error event indicates that outbound SMTP authentication on the specified Send connector failed with the specified destination smart host server. Typically, this error indicates an authentication problem on the Send connector, not on the target smart host server. This error is most likely caused when the Send connector is unable to obtain a Kerberos ticket for the target smart host server that is specified in the error message text.

When a Send connector is configured to route outbound messages to a smart host, the following authentication methods are available:

  • None

  • Basic authentication

  • Basic authentication over TLS

  • Exchange Server authentication

  • Externally Secured

In the Exchange Management Console, you set the authentication methods for outbound connections to a smart host on the Configure smart host authentication settings page after you click Change on the Network tab of the Send connector properties page.

In the Exchange Management Shell, you set the authentication methods for outbound connections to a smart host by using the SmartHostAuthMechanism parameter on the Set-SendConnector cmdlet.

User Action

To resolve this error, verify that the Send connector and the destination smart host are configured to use a common authentication method with the correct credentials and required certificates.

For more information, see the following topics:

  • Understanding Send Connectors

  • Configure Send Connector Properties

  • Set-SendConnector

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.