For example: I could go to GMail and click "Generate new disposable alias" or whatever.
It would give me something like mUa8cDjyBJyCi@gmail.com which I could use anywhere.
All emails would still go to my main email. I have the option to reply to any emails from my alias or from my real email.
If a disposable alias gets compromised I can delete it. It would be hard to keep track so I assume there would be a search feature where I could type my alias in, and then click delete. Still keep my old email.
This is better than current aliases as email+alias@gmail.com still exposes your real email, which you can never delete, only create new, meaning people can spam you forever.
