There are instances where you visit a website e.g forums and you have to create an account before you can access the required information. 10minutemail creates an email for you with a single click. Copy and paste the email where required. The email stays active for 10 minutes and is then discarded. 10 minutes are enough to receive your verification or confirm your sign up. It can also extend the time of your disposable email if you need to.

Website:  10minutemail