Email Glossary

CAN-SPAM Act

The CAN-SPAM Act (Controlling the Assault of Non-Solicited Pornography And Marketing Act) is a US federal law enacted in 2003 that sets rules for commercial email messages. It requires accurate header information, clear identification as an ad, a physical address, and a working opt-out mechanism.

Key Requirements

  • ●Don't use deceptive headers - From, To, and routing information must be accurate
  • ●Don't use misleading subject lines - Subject must reflect the email content
  • ●Identify as an ad - Commercial emails must be clearly identified as advertisements
  • ●Include your address - Must include a valid physical postal address
  • ●Honor opt-outs - Must process unsubscribe requests within 10 business days
  • ●Monitor third parties - You're liable for emails sent on your behalf

Related Terms

GDPR Email Compliance

EU regulation requiring explicit consent before sending marketing emails to EU residents.

Unsubscribe Rate

The percentage of recipients who click the unsubscribe link in your emails.

Complaint Rate

The percentage of recipients who mark your email as spam, a critical reputation metric.

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