Service of summons: affidavit and duplicate endorsed copy admissible when server absent; electronic service deemed duly served. An affidavit purporting to be sworn before a Magistrate that a summons was served, with a duplicate summons endorsed by the recipient, is admissible in evidence and presumed correct until contrary is proved; such affidavit may be attached to the duplicate and returned to the Court. Summonses served by electronic communication are deemed duly served and an attested copy must be kept as proof of service.