Is United States Postal Service function on Sunday?
Does USPS function on Sunday? Do USPS deliver mail on Sunday? Do USPS branches operate on Sundays? Do you ship packages through the United States Postal Service on Sundays? Are USPS services available on Sunday? Does USPS provide parcel shipment services on Sundays? Do the United States Postal Service work during Sundays? Do USPS branches manage mail during Sunday? Is USPS operational on Sunday? Can we receive mail during Sundays through USPS?