How do I perform 'Target Only' mailbox re-ACLing after the source Exchange server has been decommiss (NETIQKB38485)

goal
How do I perform 'Target Only' mailbox re-ACLing after the source Exchange server has been decommissioned?

fact
Exchange Migrator 2.3

fix

Updating Mailbox Permissions on the Target

During migrations from complex source environments that include multiple source Microsoft Exchange 5.5 servers, the Update Target Mailbox Permissions wizard allows you to decommission source servers as you migrate them.  You do not need to maintain your source environment until you complete your migration.

After decommissioning source Microsoft Exchange 5.5 servers, you can use the Update Target Mailbox Permissions wizard to update the migrated mailboxes.  You can use this wizard after migrating and decommissioning each server, or wait until you have a number of servers decommissioned before using the wizard.

To update mailbox permissions after decommissioning a source server

1. Migrate your mailbox data as appropriate.
2. In the left pane, select the project containing the object from the decommissioned source server.
3. In the right pane, click Update Target Mailbox Permissions.
4. Complete the wizard.

note
This wizard supports mailbox folder ACLs only.  This wizard will not update public folder ACLs.

note
Please note that this information can also be obtained from Chapter 6 of the product User Guide.

Formerly known as NETIQKB38485