Microsoft KB Archive/170577

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MDG: Private Folders in MMF named Orphan Folder #n

Article ID: 170577

Article Last Modified on 10/30/2006


  • Microsoft Mail Client 3.5

This article was previously published under Q170577


After using the chkmmf (SHIFT+ENTER) or moveuser utilities, a user's mmf file contains private folders named "orphan folder #n" where n is a number.


The MMF file is already corrupted prior to running the chkmmf or moveuser utilities. The Orphan folder symptom indicates that the portion of the MMF file that was corrupted was the index.


To work around this problem, perform one of the following:

  • Use the Windows Mail client to export the MMF file before using the moveuser or chkmmf utilities.
  • Instead of using chkmmf, rename the existing MMF file and import the old MMF file into a newly created mail message file. If a backup copy of the MMF is not available, there is no recovery from this corruption.

Keywords: kbprb KB170577