Compliance with data regulations is non-negotiable:
GDPR: Ensure that you have explicit consent from EU residents before sending them marketing emails. CAN-SPAM Act: Follow the guidelines for commercial emails, including providing an easy way to unsubscribe. Data Privacy: Be transparent about how you collect, store, and use customer data. Opt-in and Opt-out: Provide clear options for customers to opt-in or opt-out of your email list.