Which is the first country in the world to use drones for national mail service?

France
France became the first country in the world to use drones for national mail service. French postal service announced a drone delivery program to deliver parcels on a 14-kilometre route once a week to reach mountainous regions. These mail drones will have a range of 19 km and a top speed of 30.5 kmph. They also have parachutes for safe emergency landing.