By default, in Exchange 2007, when a journaling mailbox that is configured on a journal rule becomes unavailable, journal reports that are sent to that journaling mailbox are rejected and resubmitted for delivery. Journal reports are never returned to the original sender. However, if you don't want the rejected journal reports to remain in the delivery queue, you can use the procedure in this topic to configure an alternate journal mailbox to accept delivery of the journal reports until the journaling mailbox becomes available. 

Only journal reports that are submitted for delivery to an unavailable journaling mailbox after an alternate journaling mailbox is configured are redirected to the alternate journaling mailbox. Journal reports that have already failed delivery when an alternate journaling mailbox is enabled are not redirected.

Caution:

If you configure an alternate journaling mailbox, you must monitor the mailbox to make sure that it does not become unavailable. If the alternate journaling mailbox becomes unavailable and rejects journal reports, the rejected journal reports are lost and cannot be retrieved. Consider this risk when you decide whether to use an alternate journaling mailbox and how to configure the alternate journaling mailbox.

Important:
When an alternate journaling mailbox is configured, it applies to the whole Exchange 2007 organization. Journal reports that are rejected by any journaling mailbox are redirected to the same alternate journaling mailbox.

For more information about journaling, see Overview of Journaling.

For more information about how to manage journal reports, see Understanding How to Manage Journal Reports.

To perform the following procedures, the account you use must be delegated the following:

• Exchange Organization Administrator role
  
  

For more information about permissions, delegating roles, and the rights that are required to administer Exchange Server 2007, see Permission Considerations.

To configure Exchange to redirect rejected journal reports to an alternate journaling mailbox, you must specify the Simple Mail Transfer Protocol (SMTP) address of an existing mailbox in your Exchange 2007 organization.

To use the Exchange Management Shell to redirect rejected journal reports to an alternate journaling mailbox

If you no longer want to redirect rejected journal reports to an alternate journaling mailbox, you must remove the SMTP address of that mailbox. When you remove the SMTP address of the mailbox, rejected journal reports stay in the delivery queue until they are successfully delivered.

To use the Exchange Management Shell to stop the redirection of journal reports to an alternate journaling mailbox and to queue journal reports for delivery until the journaling mailbox becomes available

For detailed syntax and parameter information, see Set-TransportConfig.