insert
(4) If a document mentioned in subrule (3) is served by or on behalf of the registrar, the document may be served—
(a) by sending a copy by prepaid post to the place where the party is in custody, addressed to the person in charge of the place; or
(b) if the place has a postbox at a post office—by sending a copy by prepaid post to the postbox, addressed to the person in charge of the place; or
(c) if the place has a fax machine—by sending a copy by fax to the place, addressed to the person in charge of the place; or
(d) if the person in charge of the place has an email address—by sending a copy by electronic communication to the email address.