02:16:22 ERROR: [7437-1-196-00000000] Unable to enable object. Reason: 'ErrorId: 259C7F89
02:16:22 Error: Database is mandatory on UserMailbox. Property Name: Database
This can be caused by a replication issue with the AD/Exchange environment. Replication may be taking longer than expected.
RESOLUTION 1
Try specifying a Different Global Catalog and Domain Controller (making sure they are the same server) in Notes Migrator for Exchange on the "Active Directory" screen.

- Enable include inheritable permissions from this object's parent
RESOLUTION 2
If the ActiveDirectory user security object has Exchange values such as msExch..., remove these values