The default timeout period Exchange Migrator waits when migrating a mailbox is too long. (NETIQKB52861)

fact
Exchange Migrator 2.3

symptom
The default timeout period Exchange Migrator waits when migrating a mailbox is too long.

symptom
Exchange Migrator hangs with an error message.

symptom
Error: 'Exchange Migrator is attempting to log into mailbox.'

symptom
Exchange Migrator hangs for a long time during the migration process.

cause

The default timeout period for Exchange Migrator to wait before it moves to the next mailbox is 40 minutes.  Exchange Migrator needs to log into every mailbox object it migrates in order to start copying messages.  After the messages are copied over, or the timeout period ends, Exchange Migrator can proceed to the next mailbox in the list.  If Exchange Migrator cannot log into the mailbox after migration,  it could result in a 40-minute delay before it proceeds to the next mailbox.

fix

You can work around this issue by modifying the default timeout value in the registry.

Warning: Modifying the registry can cause catastrophic system problems which could cause you to have to reload applications or the entire operating system.  NetIQ is not responsible for errors made when performing these modifications.

To modify the default timeout value:

1. On the Exchange Migrator console computer, launch the Registry Editor and expand the HKLM\Software\Netiq\ExchangeMigrator key.
2. Create a new DWORD value named "DefineMailboxTimeout".
3. Configure the desired number of minutes for the mailbox timeout (units are defined in minutes).

You can also resolve this issue by executing the Update Now command of the domain specific Recipient Update Services object in Exchange System Manager.

To execute the Update Now command:

1. Launch Microsoft Exchange System Manager.
2. Expand the Recipients container, and then click the Recipient Update Services container.
3. Right-click the domain specific RUS object in the right pane, and then click Update Now.
4. Check Exchange Migrator's progress after performing this action. Exchange Migrator should display the message: "Copying Messages."

note

For more information on verifying if RUS is working properly, see: 

NETIQKB7892 - "How do I verify if Recipient Update Service (RUS) has run against a mailbox / mail-enabled object."

Formerly known as NETIQKB52861