In order to properly migrate Public Folders, admin credentials are required for both the Source and the Destination. Specifically:
- At source:
- Read-only access to all Public Folders is required.
- At destination:
- Admin privileges are required for the migrating "admin" account so that all fields can be set at the Destination.
- Ownership of Public Folders is required on the Destination so that new subfolders can be created.
For further details, read this article about creating an administrator account for login.