Supreme Court Rules 1987

(1) Where the service of a document on a party to a proceeding is required or permitted but personal service is not required, and that party is in default of appearance or has no address for service in the proceeding, the filing of the document shall, unless the Court otherwise orders, have effect as service of the document on that party.

(2) A party who serves a document by filing in accordance with subrule (1) shall endorse on a backsheet or on the back of the last sheet a statement that it is filed as such service.