Tip - Mailboxes and the Postmaster General

James I. asks: I was at Lowes and noticed mailboxes say “approved by the postmaster general”. What specifications do a mailbox need to reach to be approved in this way? I mean, it’s a box with a little door and a flag. Are those the requirements? What’s the process here? Thanks! While the United States Postal Service (USPS) and the [...]