Message age limit properties that are used by Mailbox Manager in Exchange Server 2003 and in Exchange 2000 Server (302804)

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Mailbox Manager is a feature in Exchange 2003 and in Exchange 2000 that runs as part of the System Attendant service. In Microsoft Exchange Server 5.5 Service Pack 3 (SP3) and in Microsoft Exchange Server 5.5 Service Pack 4 (SP4), the Mailbox Manager feature computes the age of messages in folders differently than the Exchange 2003 and Exchange 2000 versions of Mailbox Manager do.

Note In Exchange 2000, Mailbox Manager is installed on the server after you upgrade to Exchange 2000 Service Pack 1 or to a later Exchange 2000 service pack.

How dates are computed in Exchange 2003 and in Exchange 2000

Mailbox Manager examines the following MAPI properties to determine whether to process a message. If any messages are more recent than the age limit that is imposed by the Mailbox Manager recipient policy, the message is not processed:

Note Mailbox Manager examines the properties by using the "AND" operator. Therefore, all properties must meet the criteria.

• PR_MESSAGE_DELIVERY_TIME
• PR_CLIENT_SUBMIT_TIME
• PR_LAST_MODIFICATION_TIME

Mailbox Manager verifies that all three dates are older than the threshold that is set for cleaning. If all three date properties are older than the age limit that is imposed by the Mailbox Manager recipient policy, the message is processed.

For some message classes, Mailbox Manager examines additional properties. For example, for the IPM.Appointment class, Mailbox Manager examines the following properties:

• PR_END_DATE
• PR_START_DATE
• PR_APPOINTMENT_RECCURENCE == FALSE

For the IPM.Task class, Mailbox Manager examines the following property:

• PR_TASK_COMPLETED == TRUE

For the IPM.Journal task, Mailbox Manager examines the following properties:

• PR_JOURNAL_END_DATE
• PR_JOURNAL_START_DATE

Note If messages, appointments, tasks, or journal entries are missing one or more of the properties that are listed in this article for their specific message type, Mailbox Manager will not process them.

For more information about Mailbox Manager in Exchange 2003 and in Exchange 2000, click the following article numbers to view the articles in the Microsoft Knowledge Base: For more information about Mailbox Manager in Exchange Server 5.5, click the following article numbers to view the articles in the Microsoft Knowledge Base: