rootninja

http://33mail.com/

For a monthly fee you can choose your own domain, but the basic service is free.

Free Unlimited Disposable Email Addresses

Sign up and pick a username, let’s say you pick “joesmith”. Now, any email address ending with …@joesmith.33mail.com will be forwarded to you. The next time someone asks you for an email address, just make one up. For example, if you are signing up for Tribble.com, give them tribble@joesmith.33mail.com. We will forward any emails they send directly to you.

Let’s say at some point in the future Tribble start sending you emails you don’t want. All you need to do is click the “block” link that we add to these emails, and we’ll take care of making sure Tribble never send you another email through this address.