Ask HN: Random email generator?

I love the random password generator from LastPass, but I still consider emails to be an unsolved problem for registering on websites. Do you know of any extension or similar to generate a random email? Ideally, those would be redirected to my @gmail.com or my @francisco.io emails without revealing it to the sender. User case: 1. New dubious register form that I think will send me SPAM. 2. I click the "Email Generator" and it generates a random f43g4g54@mailinator.com (or my own domain). 4. I use that email. They send a confirmation email. 5. This confirmation email gets redirected to Inbox ( http://inbox.google.com/ ), Gmail, Hotmail or any other I set up previously. 6. I just click the link to validate the account. 7. They send me SPAM. I nuke that email address and know who did it (if I want to). Right now I am using a combination of low-value private email address and mailinator to achieve something similar. I consider Gmail's "+" totally insufficient since my original, good email can be extracted from there. Extra: the same thing with phone numbers would be awesome, but I understand that would be a lot more costly and difficult that it exists