/PROTECTION=(ownership[:access][,...])
Specifies protection for the mailbox.
o Specify the ownership parameter as system (S), owner (O),
group (G), or world (W).
o Specify the access parameter as read (R), write (W), logical
I/O (L), or physical I/O (P).
If no protection is specified, the mailbox template is used.
For more information about specifying protection codes, see the
HP OpenVMS Guide to System Security.