Do United States Postal Service function on Sunday?
Do USPS operate on Sundays? Is USPS deliver mail on Sunday? Is USPS open on Sunday? Do you ship packages through the United States Postal Service on Sunday? Are USPS services available on Sundays? Do I have access to package shipment services on Sunday? Does USPS work during Sundays? Can USPS manage mail during Sunday? Does USPS run operations on Sundays? Do I get mail on Sundays through the United States Postal Service?