Scroll of mail

On some systems, the mail daemon will deliver scroll of mail, containing a message from outside the game, to the hero. You can read the scroll to see the message.

Other than that, this scroll has no use in gameplay. You could acquire as many of these scrolls as you want by sending many messages to yourself. However, these scrolls will not polymorph into other objects. You could try to use them as polyfodder, or attempt to cancel or wet them into scrolls of blank paper, but nothing will happen. You can make yourself burdened by carrying too much of them!