A person serving an Application for Divorce by post must include with the document:
(a) a form of acknowledgment of service in accordance with the approved form; and
(b) an envelope that:
(i) is addressed to the address for service of the person on whose behalf the Application for Divorce is served; and
(ii) if the Application for Divorce is to be sent to an address in Australia--bears the correct postage for the return by post of the acknowledgment of service.