Glossary/Privacy & Identity/CAN-SPAM Act
Privacy & Identity
CAN-SPAM Act
The US law setting rules for commercial email, including truthful headers and subject lines, a physical address and honoring opt-out requests within 10 business days.
By Brandon Mina·CEO, BrandPilot AI·Updated November 2026
Short answer
The CAN-SPAM Act is the US law setting rules for commercial email. It requires truthful headers and subject lines, identification of the message as an ad where applicable, a valid physical postal address and a working opt-out mechanism, with opt-out requests honored within 10 business days. It does not require prior opt-in consent.