letterbox BrE
mail box AmE

One look at my name on the envelope and you dropped it back into the mail box!

The trip takes about 20 minutes, and there is a mail box at the top where one may sign the guest book.

A barrage began toward the trees near the mail box.

Before rushing back to the lab, he looked in the mail box.

They met at the mail boxes and instantly hit it off.

I opened the mail box and novel number 3,741 popped up.

He walked to the mail box and drew a letter from his pocket.

Puzzled, the girl brought the envelope from the mail box.

"What about the mail box where this brown envelope was collected?"

A pile of letters had collected in her mail box.