You may wish to protect some mailboxes from deletion or modification except by the Administrator. The following procedures describes how to do this. If someone other than an Administrator attempts to delete, modify or rename a protected mailbox, the error message mailbox is pinned is displayed.
Set the local.store.pin configutil variable. using the following format:
configutil -o local.store.pin -v "mailbox1"%"mailbox2"%"mailbox 3"
where mailbox1, mailbox2, and mailbox 3 are the mailboxes to be protected (note that spaces can be used in mailbox names), and % is the separator between each mailbox.