From Longman Dictionary of Contemporary Englishmail dropˈmail drop noun [countable] American English 1 TCMan address where someone’s mail is delivered, which is not where they live2 TCMa box in a post office where your mail can be left
Examples from the Corpus
mail drop• Some newsagents will agree for a small fee to do a mail drop with the daily or evening papers.From Longman Business Dictionarymail dropˈmail drop noun [countable] American English1an address where someone’s mail is delivered, which is not where they live2a box in a post office where your mail can be left 