Service of sending letters by registered mail with electronic tracking of the AR intended for the CAFs of Seine-Saint-Denis (93), Yvelines (78) and Val d'Oise (95). Registered postage is an integral part of the market.

Service of sending letters by registered mail with follow-up of the acknowledgment of receipt in a dematerialized manner intended for the various CAF departments of Seine-Saint-Denis (93), Yvelines (78) and Val d'Oise (95) . Registered postage is an integral part of the market.