Meltmail: Time-sensitive temporary mailbox

I don't know if you have come across this kind of thing: when we sign up for some insignificant forum, or want to download something temporarily, we are often asked to provide our email address. And when we have the good faith to trust these sites to provide email, we also accept the fate of being harassed by spam. There may be many friends who have had this experience. Today I would like to introduce you to a website that can help us solve the problems mentioned above: meltmail. On meltmail, you can choose the time limit of the temporary mailbox, during this time, the letter sent to the temporary mailbox will be automatically forwarded to your official mailbox. After this time period, the temporary mailbox is no longer valid, and there will be no harassing letters.