How to Diagnose Availability Service Issues

Microsoft Exchange Server 2007 will reach end of support on April 11, 2017. To stay supported, you will need to upgrade. For more information, see Resources to help you upgrade your Office 2007 servers and clients.


Applies to: Exchange Server 2007, Exchange Server 2007 SP1, Exchange Server 2007 SP2, Exchange Server 2007 SP3

Topic Last Modified: 2006-12-21

This topic explains how to use the Exchange Management Shell to diagnose Availability service issues in the following scenarios:

  • For an individual user

  • On a Client Access server

  • Across different sites

The Autodiscover service provides Microsoft Office Outlook 2007 with configuration information that is needed to connect to Exchange. The Test-OutlookWebServices cmdlet is a diagnostic task that verifies whether the Autodiscover service and the Availability service are correctly configured and can service Outlook client requests.

For more information about the Autodiscover service, see the following topics:

To run the Test-OutlookWebServices cmdlet, the account you use must be delegated the following:

  • Exchange Server Administrator role and local Administrators group for the target server

For more information about permissions, delegating roles, and the rights that are required to administer Exchange Server 2007, see Permission Considerations.

Before you perform these procedures, be aware that you can also diagnose Availability service issues by using Event Viewer. Specifically, search Event Viewer on your Client Access server for event logs that contain the event source "MSExchange Availability."

  • Run the following command:

    Test-OutlookWebServices -Identity:

  • Run the following command:

    Test-OutlookWebServices -ClientAccessServer ClientAccessServer01

  • Run the following command:

    Test-OutlookWebServices -Identity -TargetAddress

For detailed syntax and parameter information, see the Test-OutlookWebServices reference topic.