We're getting the following error in dbwalker:
(error) Primary Call Handler is not valid!
This subscriber may be 'stranded' by an improper uninstall of a previous Unity system or
it may be 'sharing' a primary call handler with one or more other subscribers.
If you select the 'Remove subscriber properties on mail users that have no primary call handlers' option and run again this user can be reimported to Unity.
Location Object Alias=default
What's the proper way to fix this... or better yet, which property is hosed?