Several key requirements need to be met to ensure compliance:
1. Consent: Always obtain explicit consent from recipients before sending them marketing emails. This is crucial under GDPR and CASL. 2. Opt-Out Mechanism: Provide a clear and easy way for recipients to unsubscribe from your emails. 3. Sender Information: Include accurate sender information, such as your physical mailing address and contact details. 4. Content Integrity: Ensure that your email content is truthful and not misleading. This includes the subject line and the body of the email.