- CAN-SPAM Act: A U.S. law that establishes requirements for commercial messages, gives recipients the right to have you stop emailing them, and spells out tough penalties for violations. - GDPR: The General Data Protection Regulation is a regulation in EU law on data protection and privacy for all individuals within the European Union. - CASL: Canada's Anti-Spam Legislation sets rules for sending commercial electronic messages and installing computer programs to protect Canadians from spam, malware, and other digital threats.