Anti-spam laws are regulations designed to protect individuals from receiving unsolicited emails, commonly known as spam. These laws generally require businesses to obtain explicit consent from recipients before sending marketing emails and to provide clear options for opting out of receiving further communications. Various countries have implemented their own versions of anti-spam laws, with some of the most notable being the CAN-SPAM Act in the United States, the GDPR in the European Union, and the CASL in Canada.