Microsoft KB Archive/169503

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Article ID: 169503

Article Last Modified on 8/28/2007


  • Microsoft Outlook 97 Standard Edition

This article was previously published under Q169503


When you use the Mailbox Cleanup Agent to delete messages from a server- based folder containing Microsoft Outlook messages moved from another folder, you might lose messages that were supposedly archived.

The Microsoft Exchange Server administrator uses this utility; for more information see the "Exchange Mailbox Cleanup Agent" section below.


When you move or change an Outlook message you update the "Modified" date attribute that is used by the archive program. Moved messages do not appear to the archive program as old as they were before the move, and may not be archived as soon as expected.

The Mailbox Cleanup Agent uses the "Created" date attribute, in this case a date older than the Modified date, to determine the message age, and may may delete messages that are not yet archived.


Before running the Mailbox Cleanup Agent on a folder that contains messages moved from another folder, check the Modified date of the messages to see if they have been archived.


To Set AutoArchiving in Outlook

  1. On the Tools menu, click Options.
  2. On the AutoArchive tab, click to select the "AutoArchive every <n> days at startup" check box, and then specify the number of days.
  3. Complete the other AutoArchive options and click OK.

To Set AutoArchiving for a Specific Folder

  1. Right-click the folder.
  2. On the shortcut menu, click Properties.
  3. On the AutoArchive tab, click Items Older Than and set the timeframe.
  4. Complete the other AutoArchive options and click OK.

To Check a Message's Modified Date

  1. Open the message.
  2. On the File menu, click Properties.

Exchange Mailbox Cleanup Agent

The server administrator runs the Exchange Mailbox Cleanup Agent on a frequency determined by the system defaults or as needed.


For more information about archiving dates, please see the following article in the Microsoft Knowledge Base:

161808 OL97: Message Modification Date Determines Archive Date

Additional query words: MCA

Keywords: kbpatch kbprb KB169503