/RESTRICTED=value
       /NORESTRICTED

    This qualifier controls the setting of the restricted flag. By
    default, this flag has value 0. When set to 1, /RESTRICTED=1, the
    restricted flag will be set on and addresses will be rewritten
    using the restricted mailbox encoding format recommend by
    RFC1137.

    This flag is used to force rewriting of address mailbox names in
    accordance with the RFC1137 specifications; see the PMDF System
    Manager's Guide for further details.