How does a long serve become a fault in three-wall handball?

In three-wall handball, a long serve becomes a fault when the ball, after striking the front wall, does not touch the floor until after it has passed the outer edge of the long line.1

While three-wall regulations generally mirror those of the four-wall game, this specific rule accounts for the court's layout. A fault is considered an illegal serve, and in handball, two successive faults will retire the side.12