mail slot size

When I’m in the mailroom, I check my mail slot to see what mail has arrived overnight. A “slot” is normally a small rectangular opening in something, but a “mail slot” is a small box that has a person’s name on it and holds mail for that person.

A wall mail slot offers a secure and stylish way to receive mail at home. Improve convenience with a weather-resistant mail slot design.

The main difference between a door mail slot and a mailbox is that while both allow for receiving mail, only traditional mailboxes support outgoing mail.