mailbox slot in door - Internal mail slot mega 888

"Mail slot" and "Mailbox" redirect here. For the type of interprocess communication, see MailSlot. For other uses, see Letterbox (disambiguation) and Mailbox (disambiguation).

While most post-mounted mailboxes have a door that opens and closes, the front of a collection mailbox has a slot for mail.

Learn how to choose a mailbox, what Postal Service regulations apply to mailboxes, and how to mount your new mailbox.