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Q170911: XADM: Clean Mailbox Utility Deletes Msgs Not Archived

Article: Q170911
Product(s): Microsoft Exchange
Version(s): winnt:5.0
Operating System(s): 
Keyword(s): kbusage exc5
Last Modified: 23-OCT-1999

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The information in this article applies to:

- Microsoft Exchange Server, version 5.0 
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SYMPTOMS
========

When you use the Clean Mailbox utility in the Microsoft Exchange Server
Administrator program, modified messages are deleted unexpectedly.

CAUSE
=====

Every message has properties that track time properties of the message, such as
the delivery time of a message and the time the message was last modified. The
Clean Mailbox utility in the Microsoft Exchange Server Administrator program
determines the message age on the basis of the MAPI property
PR_MESSAGE_DELIVERY_TIME, that is, the date the message was received. However,
Outlook auto-archive determines message age on the basis of the MAPI property
PR_LAST_MODIFICATION_TIME, that is, the date the message was last modified.

This difference may result in problems. For example, if you plan to auto- archive
messages after they reach a certain age, and you then delete messages using the
Clean Mailbox utility, some messages may be deleted that have not yet been
auto-archived because the last modification date may be changed.

For information about how might the last modification date be changed, please
reference the following article in the Microsoft Knowledge Base:

  Q161808 Message Modification Date Determines Archive Date


STATUS
======

Microsoft has confirmed this to be a problem in Microsoft Exchange Server
version 5.0. This problem has been corrected in the latest U.S. Service Pack for
Microsoft Exchange Server version 5.0. For information on obtaining the service
pack, query on the following word in the Microsoft Knowledge Base (without the
spaces):

  S E R V P A C K


Additional query words:

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Keywords          : kbusage exc5 
Technology        : kbExchangeSearch kbExchange500 kbZNotKeyword2
Version           : winnt:5.0
Issue type        : kbbug
Solution Type     : kbfix

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