The Controlling the Assault of Non-Solicited Pornography and Marketing (CAN-SPAM) Act is a law passed in 2003 that establishes the first national standards for the sending of commercial e-mail in the United States. The law requires the Federal Trade Commission (FTC) to enforce its provisions. The law applies to any commercial e-mail message, which is defined as any electronic mail message the primary purpose of which is the commercial advertisement or promotion of a commercial product or service. The law does not apply to transactional or relationship messages, which are messages that facilitate an agreed-upon transaction or update a customer about an existing business relationship. The law also does not apply to non-commercial messages, such as political or charitable solicitations12

The CAN-SPAM Act is intended to help consumers by giving them more control over the commercial e-mails they receive. The law does not require companies to obtain prior consent (opt-in) from consumers before sending them commercial e-mails, but it does require companies to honor consumers’ requests to stop receiving such e-mails (opt-out). The law specifies that each commercial e-mail message must include a clear and conspicuous notice of the opportunity to decline to receive further messages from the sender, and a valid physical postal address of the sender. The sender must provide a functioning return e-mail address or other Internet-based mechanism that allows the recipient to submit an opt-out request. The sender must honor the opt-out request within 10 business days and must not sell, exchange, or transfer the e-mail address of the opt-out requester to another entity, unless the other entity is acting as an agent of the sender12

By requiring companies to allow consumers to opt-out of future e-mails, the CAN-SPAM Act aims to reduce the amount of unwanted and unsolicited commercial e-mail that consumers receive, and to protect their privacy and preferences. The law also imposes other requirements on companies that send commercial e-mails, such as banning false or misleading header information and deceptive subject lines, requiring the identification of the message as an advertisement, and requiring the labeling of sexually explicit content. The law also authorizes the FTC and other federal agencies to enforce the law and impose civil penalties for violations12

References:

Controlling the Assault of Non-Solicited Pornography and Marketing Act of 2003 (CAN-SPAM Act)

IAPP CIPP/US Certified Information Privacy Professional Study Guide, Chapter 4: Federal Privacy Laws, Section 4.4: The CAN-SPAM Act