Is It Possible To Get A Disposable Email Address?

Yes, there is a site offering this kind of use-once read-only type of email address.

They are useful for one-off contacts where you don't wish to divulge your real email address or simply want to avoid getting any more spam than necessary. Some people use them when registering with a site simply to satisfy the initial verification process and avoid being inundated with follow up email.

The disadvantage is that you may miss out on important mail later on and the security is very low, especially if you use a guessable user name.

There's no need to register at the mailinator.com site beforehand. All you do is make up an email address out of the air that ends @mailinator.com. Then go to the site and pick up your message by typing in the mailinator.com email address you gave out.

As Mailinator.com points out the only guarantee of someone else not getting your email is down to the originality of the user name. Mail received is automatically deleted after a few hours.