Email & SMS Marketing Compliance in Colorado (2026)

Marketing to people in Colorado? Federal CAN-SPAM and TCPA always apply — and Colorado adds its own rules.

The rules in Colorado

Colorado's Privacy Act (CPA) requires opt-out (including a universal opt-out signal) for targeted ads and data sale, plus access and deletion rights.

How to stay compliant

• Get proper consent and honor opt-out immediately.
• Identify yourself and include a working unsubscribe.
• Keep records of consent to defend against complaints.

How Rainmail helps

Rainmail sends from your own domain on a dedicated, isolated IP with SPF, DKIM, DMARC, reverse-DNS and managed warm-up handled for you, plus an AI watching list health and deliverability — and it welcomes senders SES, SendGrid and Mailchimp reject, from $8. Run the free checker or see plans.