Disposable temporary email protects your real email address from spam, advertising mailings, malwares. It's anonymous and free. This email has a limited lifetime period: if this email will not receive messages due to some time — it will be removed. Sometimes disposable email is also called "throwaway email", "10 minute mail", "tempmail", "trash mail" and "fake mail".
Temporary email can be used for different websites (e.g. social networks), download files from file hostings, use it each time you want to stash your real email and paste temporary email instead. For example, public Wi-Fi spots, blogs and forums require users to complete registration until they can fully use their website.