PookMail.com provides free and anonymous disposable email service.
Where anyone can create an email account @pookmail.com (e.g. firstname.lastname@example.org) and then use it to receive emails and reply to received emails. User cannot send an email from his PookMail.com account to any email address or cannot compose new emails to be sent. I think this is done to stop PookMail.com users to spam or abuse PookMail.com services. Users just have to enter their username to log in or create a new account at PookMail.com (i.e. No password protection). You can receive your PookMail.com emails directly to your desktop via RSS feed.
PookMail.com is like a disposable inbox because your account will deleted after 24 hours with all stored emails. So you must save important emails before that time.
So why use PookMail.com?
PookMail.com service is quite useful when you have to give your email id you unknown persons or web sites whom you don’t trust for spam or other reasons.