The U.S. Postal Service we know today looks much different than it did a century ago. Its delivery network — including curbside mailboxes and delivery vehicles — was originally designed to deliver letters.
With the explosive growth of ecommerce over recent years, the Postal Service finds itself focusing more on delivering packages to mailboxes and front doors across the country. The Postal Service delivered about 6 billion packages in 2019, doubling its volume over a decade.