At least in the states, the postman is almost assuredly doing the end delivery of the mail, and is often given a stack of advert materials to mix into the deliv

At least in the states, the postman is almost assuredly doing the end delivery of the mail, and is often given a stack of advert materials to mix into the delivery for a certain delivery area. The use of a mailbox by anyone who isn't a USPS employee delivering paid mail is prohibited by law. https://about.usps.com/news/state-releases/tx/2010/tx_2010_0909.htm https://about.usps.com/news/state-releases/tx/2010/tx_2010_0...