Visitors to the James A. Farley Building in Midtown Manhattan, which formerly served as New York City’s main United States Postal Service (USPS) branch, will find these iconic words inscribed on top: “Neither snow nor rain nor heat nor gloom of night stays these couriers from the swift completion of their appointed...

The U.S. Postal Service (USPS) thinks you might need a bigger mailbox. As for why, it’s for exactly the reason you’d expect: Due to the explosion of online shopping, your old letterbox is probably too small for the volume and type of mail you now receive. Each year, the Postal Service...