CAN-SPAM Compliance After Email Extraction
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How CAN-SPAM Applies to Extracted Addresses
The CAN-SPAM Act is a US federal law that sets rules for commercial email messages. It applies to any commercial email sent to a recipient in the United States, regardless of how you obtained their address.
CAN-SPAM generally does not require prior opt-in consent for commercial email. That does not establish that every extracted address may lawfully be contacted: respect prior opt-outs and assess any other applicable privacy and marketing rules. Every commercial message must meet the Act’s requirements, and violations carry penalties of up to $53,088 per violating email, as listed in the FTC’s compliance guide, checked on 8 October 2026.
The Seven Requirements
1. Accurate header information
The "From," "To" and "Reply-To" fields and the originating domain must accurately identify the person or business that sent the message. Do not use a misleading sender name or a domain you do not control.
2. Non-deceptive subject lines
The subject line must reflect the content of the message. A subject like "Your order has shipped" on a cold outreach email violates this rule.
3. Identification as an advertisement
If the message is an advertisement or solicitation, it must be identified as such. The law gives flexibility in how you do this. A clear label, a disclosure line, or obvious commercial context all work. The requirement does not apply to transactional or relationship messages.
4. Physical postal address
Every commercial email must include your valid physical postal address. This can be a street address, a PO box registered with the US Postal Service, or a private mailbox registered with a commercial mail receiving agency.
5. Opt-out mechanism
Every message must include a clear way for the recipient to opt out of future commercial emails from you. This can be a reply-based opt-out, an unsubscribe link, or an email address they can write to. The mechanism must be functional for at least 30 days after the message is sent.
6. Prompt opt-out processing
When someone opts out, you must honour the request within 10 business days. You cannot charge a fee, require the recipient to provide information beyond their email address, or make them take any step other than sending a reply email or visiting a single web page.
7. Responsibility for third parties
If you hire someone to send emails on your behalf, both you and the sender can be held liable for violations. You cannot contract away your CAN-SPAM obligations.
What CAN-SPAM Does Not Require
Prior consent. Unlike GDPR, CAN-SPAM does not require opt-in consent before the first message. You may send an initial commercial email to an address you extracted from a publicly available source, provided the message meets all seven requirements above.
Disclosure of source. CAN-SPAM does not require you to tell the recipient where you found their address. However, doing so builds trust and reduces the likelihood that recipients will mark your message as spam.
Double opt-in. CAN-SPAM does not mandate double opt-in for adding someone to a mailing list. Double opt-in is a best practice for list quality, not a legal requirement under this law. See Double Opt-In Explained for when it is worth using.
Transactional vs Commercial Messages
CAN-SPAM distinguishes between commercial messages (advertising or promoting a product or service) and transactional messages (facilitating an agreed-upon transaction, delivering a product update, or handling an account relationship).
Transactional messages are exempt from most CAN-SPAM requirements, though they still must not contain false or misleading routing information. If a message contains both commercial and transactional content, the primary purpose determines which rules apply.
Extracted email addresses are most commonly used for commercial outreach, so the full set of requirements applies.
State Laws
Some US states have their own email or privacy laws that add requirements beyond CAN-SPAM. California's CCPA gives residents rights over their personal data, including email addresses. Other states have enacted similar privacy laws. CAN-SPAM pre-empts state laws that specifically regulate commercial email, but it does not pre-empt state laws that address fraud, computer crime or broader privacy rights.
If you are sending to recipients in states with comprehensive privacy laws, check those obligations separately.
Practical Steps After Extraction
Review your list. After extracting addresses with Email Extractor, review the results before sending anything. Remove addresses that are clearly irrelevant to your purpose. Downloading as CSV with sources helps you document where each address came from.
Prepare compliant messages. Before sending, verify that each message includes your physical address, an opt-out mechanism, honest header information and a non-deceptive subject line.
Set up opt-out handling. Make sure your unsubscribe process works before you send. Test the link or reply address. Plan how you will process requests within the 10-business-day window.
Maintain a suppression list. Keep a permanent record of every address that has opted out. Check new extracted lists against this suppression list before sending. Sending to someone who previously opted out is a violation.
Validate addresses. CAN-SPAM does not require validation, but sending to invalid addresses increases bounce rates and damages your sender reputation. Consider running extracted addresses through a validation service before sending.
What Email Extractor Does Not Do
Email Extractor extracts addresses from text and files. It does not send emails, manage opt-outs, check addresses against a suppression list, or verify CAN-SPAM compliance. These steps require separate tools and processes.
Further Reading
- FTC CAN-SPAM compliance guide (Federal Trade Commission)
- GDPR and Email Extraction
- Email Extraction and Privacy
- Email Sender Reputation
Official guidance
Consult the FTC CAN-SPAM compliance guide for commercial email requirements. Extracting an address does not establish consent or compliance with other applicable laws.
