Vietnam is after your junk folders. No, really.

The government has launched a major crackdown on companies that sent spam messages promoting gambling. Local news outlet Viet Nam News reported that six companies have already been fined a total of VND535 million ($23,732) since the beginning of August.

Of these six, three companies—BiBo Communication Limited Company, Viet Nam Telecommunications and Digital Entertainment Joint-stock Company, and NetViet Technology and Services Joint-stock Company—were fined VND 120 million ($5,323) each.

Officials of the Ministry of Information and Communications’ inspectorate agency said the three companies were charged with sending spam messages, not providing information on fees or how to cancel services, and providing gambling services, according to the report.