Salsbury Mail Drop - Aluminum -

A letter box, letterbox, letter plate, letter hole, mail slot or mailbox is a receptacle for receiving incoming mail at a private residence or business

The solution is a cast iron mail chute slot from an old building This is the entry point for a mail drop that you might find in an office

mailbox door slot Chute or often referred to as a sleeve is attached to each mail drop Shop Categories Division 10 Products · Mailboxes and Storage · Package Drop Boxes

mail slot in door If you do want to do it, the easiest way is to just put some shrink wrap over it Get some double-sided tape, make a square around the mail slot