Imagine that you decided to download a new adult movie, and you are asked to enter your email address. For some reason, you do not want to indicate your corporate email address. Or think of situations when you need to register on some website to use it for 5 minutes and then forget about it. Or you need a separate mailbox to receive a discount card in the store so that you can log in once and forget about it forever as well. At this point, it makes sense to have temporary mail that you can use for 5 minutes and then never think about it again.
