International Mail is a U.S. shipment category for goods clearing through U.S. Customs and Border Protection (CBP). It allows for the release of mail transported by a contract carrier from a foreign postal service to the U.S. Postal Service.

To qualify, the shipment must be sent directly from the foreign postal service (e.g., Canada Post) to the U.S. Postal Service and consist solely of letter-class mail or correspondence. Any merchandise requires formal or informal entry and is processed under other shipment types.