Which policy is included in the CAN-SPAM Act?

Comprehensive and Detailed Explanation From Exact Extract:

The CAN-SPAM Act requires that commercial emails include a clear and conspicuous mechanism allowing recipients to opt out of receiving future emails. This opt-out method cannot require payment or additional steps that would discourage recipients.

The act aims to reduce unsolicited commercial emails and spam.

Compliance is critical for lawful email marketing and forensic investigations involving email misuse.