Private carriers FedEx and UPS have cut off delivery service for some retailers, sending massive volumes of packages to the Postal Service.

Source: USPS inundated by crush of holiday packages, leading to delivery delays – The Washington Post

Mailed a letter at the Post Office yesterday. I’m in a small town – but the line of cars was backed up out on to the street.

At this time, all mail is delayed – letters to packages. FedEx and UPS have stopped handling shipments from some of their retail partners too, pushing those packages into the USPS, which has to accept all service requests.

By EdwardM