11e51f25_muniGate_Pro_Server__Mailboxes__Negative_Name
[Name] Hidden [Description] Messages with this flag set are visible only to the Mailbox Account owner and to those users who have the Admin Access Right for this Mailbox. This flag allows users to grant access to their Mailboxes to others while keeping certain messages private (hidden). [IMAP Name] $Hidden [Negative Name] 
NotHidden
CommuniGate Pro Server: Mailboxes
Negative Name