What is a CASL?

CASL stands for “Canadian Anti-Spam Legislation.” It’s a Canadian law passed in 2013 that covers the sending of “commercial electronic messages” that may be accessed by a computer in Canada. CASL covers email, texts, instant messages, and automated cell phone messages sent to computers and phones in Canada.


For example, suppose a Canadian company wants to send promotional emails to its customers. Under CASL, they must ensure that they have obtained explicit consent from each recipient before sending them commercial emails. Additionally, each email must include the sender’s contact information, a clear and conspicuous unsubscribe mechanism, and identification of the message as a commercial electronic message. Failure to comply with CASL regulations can result in significant fines imposed by the Canadian government.

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