When serving in tennis can the ball go off the sides of the table?

If you are playing singles in Table Tennis, the ball can hit any part of your opponent's half of the table after passing over the net.

As long as the ball hits the playing surface, the service will be legal. The white lines are part of the playing surface.

However, if the ball touches the net during service, before touching the playing surface, the service must be replayed.

But if you're playing doubles, the service must only touch the right half court.

The only instance where the ball must go between your opponents corners of the table is if the receiver is a wheelchair user, then the service must exit between the two corners on his side.