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The CAN-SPAM Act sets rules for commercial email in the United States. You are responsible for your sending practices. Migma provides tools that help you meet common requirements, but this page is guidance—not legal advice.
For permission-based sending rules (no cold email), read What you can send with Migma first.

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Before you send marketing email

1

Accurate header information

From, To, and Reply-To must be accurate and identify you as the sender.In Migma: Configure sender name, from address, and reply-to in project or domain settings. Use a monitored reply address—not no-reply—when possible.
2

Truthful subject lines

Subject lines must reflect the content of the message. Avoid deceptive patterns such as fake replies or urgent security alerts for promotions.In Migma: Email Preflight flags risky subject and content patterns. Use Fix with AI to revise copy before sending.
3

Physical mailing address

Commercial email must include a valid physical postal address.In Migma: Set your business address in compliance or brand settings so footers and preference pages can include it automatically.
4

Clear unsubscribe

Recipients must be able to opt out easily, without login or extra steps.In Migma: Marketing emails include unsubscribe handling through your sending setup and Preference center. Honor opt-outs promptly; suppressed contacts should not receive marketing sends.
5

Honor opt-outs quickly

CAN-SPAM requires processing opt-out requests within 10 business days. Faster is better for trust and deliverability.In Migma: Unsubscribe and suppression flows are designed for immediate effect on marketing sends. See Suppression list.
6

Monitor senders on your behalf

If agencies or teammates send for you, you remain responsible for their compliance.In Migma: Use team permissions and audit sending activity. See Security & Compliance for access controls and logging.

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Quick checklist

Sender identity is accurate and matches your brand
Subject line matches email content
Physical address appears in the footer (where required)
Unsubscribe or preference link is visible and works
Contacts opted in to marketing (not cold lists)
Preflight run for compliance and deliverability warnings
Sending domain authenticated (SPF, DKIM, DMARC where applicable)

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Common mistakes

Using transactional sending flags for marketing content violates recipient expectations and CAN-SPAM intent. Send promotions only to contacts with marketing consent.
Burying unsubscribe links or requiring login increases complaints. Complaints hurt deliverability for your entire domain.

Email Preflight

Automated compliance, spam, and deliverability review.

Security & Compliance

Full compliance overview including CASL and GDPR.

Acceptable use

Platform policy for permission-based email.

Add sending domain

DNS authentication for trusted sending.