Legal basis: Notice of the State Post Bureau on Doing a Good Job in the Supervision and Administration of Universal Postal Service and Stamp Issuance 20 17 Article 7: Carry out the work of "eliminating pornography and illegal publications" in the postal industry. The National Bureau will issue the Notice on Doing a Good Job in Combating Pornography and Illegal Publications in the Postal Industry on 20 17, deploy the work of combating pornography and illegal publications in the industry, and strengthen business training. In accordance with the notification requirements, all provincial bureaus should accurately grasp the requirements of the central authorities, implement the responsibility of "number one", closely focus on publicizing and implementing the main line of welcoming the 19th National Congress of the Communist Party of China, strictly implement the tasks of postal departments involved in special actions such as "clearing the source", "autumn wind" and "securing the border", further strictly control the two major points of mailing and newspaper sales, make good use of the inspection system for receiving and sending, portrait law and the security responsibility system for postal kiosks, and carry out in-depth supervision and inspection. Guangdong, Fujian and other key areas should take effective measures to strengthen targeted monitoring and control to ensure the implementation of the task of simultaneously checking and blocking.