I wonder if an email masking service would make sense. You register with it, and give it your real address. You then can generate a new public email anytime you like. Control how it behaves, etc. [/me hits up google]

So, I just looked to see, and there is already a service doing this: https://www.abine.com/. The email forwarding is the easy part. They also do "burner" credit card numbers. I don't know that domain to know how you do that, but that seems good. They also do phone numbers. Neat idea.