Ключевые слова: ad, address, adult, advertisement, advertising, apartment, apartment building, bills, box, checking, correspondence, delivery, garbage, hand, house, indoors, junk, key, letter, letterbox, lock, locker, mail, mail slot, mailbox, metal, multiple, office, open, owner, post, post office, postal, postbox, privacy, private, property, receive, residential, routine, safe, safety, security, shelf, spam, take, taking, unlocking, woman,