A ‘List-unsubscribe header’ is a technical feature in email communication that allows recipients to easily and conveniently unsubscribe from a mailing list. This header is typically included in the email’s code and provides a direct link or button for users to click and opt-out of future emails. This not only streamlines the unsubscribe process for users, but also ensures compliance with anti-spam laws and promotes a positive user experience. The ‘List-unsubscribe header’ is a valuable tool for both email marketers and recipients, as it allows for efficient and hassle-free management of email subscriptions.