Customer Guard is an advanced anti-spam solution for Magento 2. It saves you time and trouble by automatically blocking fake and fraudulent users, based on a fully customizable set of criteria, such as username patterns, e-mail addresses, or IPs. Customer Guard provides a clean and easy-to-use dashboard for configuring your block settings and error messages. You can explicitly block or allow sets of email domains, IP ranges, or suspicious patterns in usernames, and set a maximum username length. You can also fully customize the error message that is displayed to the end-user when their registration has been blocked. This extension is compatible with single-site and multi-site Magento stores, as well as GraphQL-based headless solutions.