usps overnight a letter

usps overnight a letter refers to the option of sending a letter via USPS Priority Mail Express, which guarantees overnight delivery to most U.S. addresses. This service is ideal for businesses and individuals needing to send time-sensitive documents, contracts, or other important letters quickly. While USPS offers competitive rates for overnight mail, it is generally more expensive than standard mail options. For e-commerce businesses, providing overnight shipping options for documents and urgent deliveries adds value to the customer experience.