overnight a letter

overnight a letter is a shipping method used to send time-sensitive documents or letters that need to arrive the next day. USPS, FedEx, and UPS all offer overnight letter shipping services, which guarantee next-day delivery for documents. This service is typically used for legal papers, contracts, and other important communications. Depending on the carrier, overnight letters may also come with tracking and insurance, giving senders confidence in the safe and timely arrival of their letters.