usps sending letters overseas is a common service offered by the United States Postal Service for those looking to send correspondence internationally. USPS provides various international mail services, including First-Class Mail International, Priority Mail International, and Express Mail International. The service allows businesses and individuals to send letters, documents, and packages to destinations around the world at varying rates and delivery speeds. Tracking services are often included, and for time-sensitive shipments, expedited options are available. USPS offers an affordable and reliable choice for international letter sending, with delivery times depending on the service level and destination country.