nitsan/ns-guestbook (packagist): One of the only TYPO3 extension which provides to integrate all the features of Guestbook like review form with send mail, list of guest. Demo: https://demo.t3planet.com/t3t-extensions/guestbook/ You can download PRO version for more-features & free-support at https://t3planet.com/typo3-guestbook-extension
Keywords: book|review|TYPO3 CMS|feedback|guestbook|guest|nitsan