Similar to Maildrop. You can use MailDude when you need a temporary email address. Awesome.
"MailDude receives your incoming mail and stores messages for an hour. Enough time to click the "confirm your email address" or "give me access now"-link.
Just use any name@maildu.de when you sign up somewhere or if you just want to test a service without filling your own inbox. Come back here and check the incoming emails."
Startup Stash
MailDude
AirHelp
1Degree