Even if it’s occasionally empty, you’ll never have a shortage of post with the Post Mount Modern Mailbox from, surprise, surprise, Modern Mailbox. A clever modern design from Rob Baker that harkens back to bygone days with simple lines and hidden hardware, you can trust it won’t rust. It’s made in the USA from aluminum and finished with a powder coating for additional protection from the elements. The mailbox should be mounted on something, and the existing post is designed for the box. Though the post is sold separately, you can either purchase it or make your own, attaching it via four holes on the box’s bottom using the included hardware items (four carriage bolts, lock nuts, and lock washers).