Does USPS function on Sunday?
Is USPS operate on Sunday? Do USPS deliver mail on Sunday? Does the United States Postal Service open on Sunday? Do you post packages through USPS on Sunday? Are USPS services available on Sundays? Do I have access to package delivery services on Sunday? Do USPS operate on the weekend? Do USPS branches process mail on Sunday? Is USPS operational on Sundays? Do you get mail on Sunday through the United States Postal Service?