• Article

A request to access a public folder failed

 

Topic Last Modified: 2007-11-16

The Microsoft Exchange Server 2007 Management Pack for Microsoft Operations Manager (MOM) monitors the Windows Application log on computers that are running Exchange Server 2007 and generates this alert when the event or events specified in the following Details table are logged.

To learn more about this event, do one or more of the following:

  • Review the description of the event that includes the variables specific to your environment. From the MOM Operator Console, select this alert, and then click the Properties tab.

  • Review all events that have been logged that meet the criteria of this MOM alert. From the MOM Operator Console, click the Events tab, and then double-click the event in the list for which you want to review the event description.

Details

Product Name

Exchange

Product Version

8.0 (Exchange Server 2007)

Event ID

4003

Event Source

MSExchange Availability

Alert Type

Warning

MOM Rule Path

Microsoft Exchange Server/Exchange 2007/Client Access/Information Worker

MOM Rule Name

A request to access a public folder failed.

Explanation

This Error event indicates that the Microsoft® Exchange Availability service could not successfully retrieve Schedule+ Free Busy data for one or more legacy Exchange mailboxes. A legacy Exchange mailbox refers to a mailbox that resides on an Exchange 2000 or Exchange 2003 server. The Exchange Availability service is responsible for retrieving Schedule+ Free Busy data for a set of mailboxes. If the mailbox resides on a computer that is running Exchange 2007 Server, the Availability service retrieves the data from the mailbox itself. However, if the mailbox resides on Exchange 2000 or Exchange 2003 server, the Availability service retrieves the data from Public Folders. This event occurs when the Exchange Availability service does not retrieve the data from Public Folders.

This event can be logged because of various reasons. Increase the diagnostic logging level of MSExchange Availability service to find the root cause of this error.

User Action

To resolve this error, follow these steps:

  • Increase the diagnostic logging level of MSExchange Availability service. To do this, follow the steps shown here:

    Warning

    Incorrectly editing the registry can cause serious problems that may require you to reinstall your operating system. Problems resulting from editing the registry incorrectly may not be able to be resolved. Before editing the registry, back up any valuable data.

    1. Start Registry Editor (regedit).

    2. Locate the following registry key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MSExchange Availability\Diagnostics

    3. In the results pane, change the Value data of all keys (except Default) to 5.

    4. Exit Registry Editor.

  • Review other related Error and Warning events in the Application log. These related events may help you find the root cause of this error.

For detailed information about how to configure logging, see How to Change Logging Levels for Exchange Processes.

If you cannot resolve this error using the options suggested here, contact Microsoft Product Support Services. For more information, visit the Microsoft Help and Support Web site.

For More Information

To search the Microsoft Knowledge Base articles based on criteria that generated this alert, visit the Search the Support Knowledge Base (KB) Web site.

To review Exchange 2007 event message articles that may not be represented by Exchange 2007 MOM alerts, see the Events and Errors Message Center.

If you are not already doing so, consider running the tools that Microsoft Exchange offers to help administrators analyze and troubleshoot their Exchange environment. These tools can help you make sure that your configuration is in line with Microsoft best practices. They can also help you identify and resolve performance issues, improve mail flow, and better manage disaster recovery scenarios. Go to the Toolbox node of the Exchange Management Console to run these tools now. For more information about these tools, see Toolbox in the Exchange Server 2007 Help.