Legal basis: Article 4 of the Implementation Plan of the Special Action for Centralized Cleaning and Rectification of Delivery Channels by the State Post Bureau strictly controls the receipt and delivery of mail and express mail by non-agreement customers, especially in places where people flow, such as roadsides, stations, hotels and squares; Prompt the user to truthfully fill in the express waybill or delivery list, including the name and address of the sender and the recipient, the name, category and quantity of the delivered goods, etc. , and then compare and verify the phone number of the sender and relevant identity information to receive and send. All enterprises should formulate their own real-name receiving and sending operation procedures, improve the user information security management system, and improve the user information confidentiality and security management measures.