If you want to learn how mail works, what better guide than Elmo? Letter writing is probably an abstract concept for a generation of schoolchildren more likely to have held a mobile device before ever touching a pencil. That’s why the furry red creature with a sweetly squeaky voice is tagging...

The United States Postal Service (USPS) on Wednesday reported a net loss of $4.9 billion for the year ending Sept. 30, narrowing its losses over the prior year. USPS's operating revenue was $77 billion for the 2021 budget year, an increase of $3.9 billion, or 5.3%. It reported a 2020 net...