This video tutorial demonstrates how to use TempMail, a free temporary email service, to protect your personal privacy and avoid spam. TempMail is a disposable email tool that automatically generates temporary email addresses which are destroyed after a certain period. Using a temporary email is an effective way to prevent your real email from being leaked or misused when you need to register for forums, websites, or download resources. The video showcases a practical example of registering for a CodePen account, covering the entire process from visiting the TempMail official website, generating a temporary email address, copying and using it, receiving verification emails, to completing account activation. The entire process is simple and fast, usable without registration, and particularly suitable for users who frequently register for various websites but don't want to expose their real email addresses. It's a practical tool for protecting online privacy.