us mail delivery on sunday

us mail delivery on sunday is available for certain services offered by the United States Postal Service (USPS). USPS delivers Priority Mail Express on Sundays, including on holidays, for an additional fee. However, other mail types, such as First-Class Mail and Standard Mail, are generally not delivered on Sundays. This service is designed for urgent or time-sensitive packages, ensuring that customers receive their packages as quickly as possible, even on weekends.