10 Minutes Mail is service which provides you a temporary email address for 10 minutes. Why would someone need such a temporary email address and that too for 10 minutes only?
The author of the service explains this fact tactfully on the home page of the service.
We can use this temporary address to sign up with some new web site and later can change our email to the actual one once we are satisfied with the site.
Tushar Joshi, Nagpur