Do USPS function on Sunday?
Is USPS operate on Sundays? Do USPS deliver mail on Sunday? Is USPS open on Sundays? Can you post packages through USPS on Sundays? Is it possible to utilize USPS services on Sundays? Do I have access to package shipment services on Sunday? Is the United States Postal Service work on the weekend? Do USPS branches process mail on Sunday? Does USPS run operations on Sundays? Can I get mail during Sundays through USPS?