I would like to:
- Have distinct email address for any site I register on
- Quick way to generate and "bind" random address to a site
- Automatic forwarding from these addreses to "main" address
- Block any address that I have generated
That approach would allow to have distinct address for each site and makes it harder to hack on my credentials if it gets compromised. Also, it allows to see if a site leaks its email database to spammers, you can easily block leaked address.
I think I could do it using some postfix hackery for my own domain. Generation/binding could be done via browser addon, also possible. But anyway, does any web-based service I described exist? 10minutemail is good, but addresses are transient and there is no address-site mapping available.