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Outlook 2003 client error: 'Task Microsoft Exchange Server reported error (0x8004010F)'

Offline Address Lists issues can cause the following Exchange Server error when running Outlook 2003 clients on Exchange 5.5: "Task Microsoft Exchange Server reported error (0x8004010F). The operation failed an object could not be found." SearchExchange.com expert Patricia Guerrero explains how to rebuild Offline Address Lists to correct this problem.

I'm using Microsoft Outlook 2003 with Exchange Server 5.5 SP6. I'm getting the following error with Outlook 2003 clients only: "Task Microsoft Exchange Server reported error (0x8004010F): The operation failed an object could not be found." Do you have any idea what the problem could be or how to fix this?
VIEW MEMBER FEEDBACK TO THIS ASK THE EXPERT Q&A.

This could be an issue with the Offline Address Lists. Try rebuilding it:

  1. Open Exchange System Manager (ESM).
  2. Go to Recipients -> Offline Address Lists.
  3. Navigate to Default Offline Address Lists.
  4. Right click and select Rebuild.


MEMBER FEEDBACK TO THIS ASK THE EXPERT Q&A:

If Exchange cached mode is enabled in Microsoft Outlook 2003, try disabling it.

Exchange cached mode is supported on Exchange Server 5.5 and later, but the end user experience may vary unless Exchange Server 2003 or later is deployed.

As Exchange Server 5.5 is no longer under support, you should consider an upgrade to Exchange Server 2003 or Exchange Server 2007; Microsoft has many tools, processes and planning documentation to facilitate the move to Exchange 2003.
—Tim S.


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