Assign per-User Permissions to 'Connector Service User'

For every user that will be synchronized, ensure that the minimum security access control is provided.

The 'Connector Service User' requires the following permissions as the minimum subset:

Access: Editor with “Delete documents”, “Create personal folders/views”, “Create shared folders/views”, “Replicate or copy documents”.

In the following example, the Connector Service User is "QA SyncUser" and the target mail file belongs to user "QA User 1":