Mail is a Japanese horror manga series written and illustrated by Housui Yamazaki.

The English translation is published by Dark Horse Comics.

He uses a broomhandle pistol called Kagutsuchi (迦具土, Kagutsuchi) and hallowed ammunition to shoot ghosts that may or may not have possessed people and seal them inside the bullets which simply drop to the floor.

The pistol also has the ability to revive the dead by shooting a bullet with a ghost sealed inside into its original body.

A Japanese live-action movie adaption has been created from the series.