The postal service on Wednesday reported a quarterly loss of $562 million, despite growth in package delivery, due to continued erosion in the use of first-class mail as well as expensive mandates for its retiree health care obligations.
The Postal Service has lost money for 10 consecutive years. First-class mail volume is down as people rely more on email for online bill payments. But online shopping has led to record volume in its package-delivery business.
The number of merchants using Fulfillment by Amazon increased 70 percent in 2016. The logistics service lets merchants send goods to Amazon warehouses and pay a fee for packing and shipping online orders to customers.