What is the "Open Email System"?
As per the greek philosophy, The God takes birth in our minds first and then in the idol.
Ok. what's up?
Registering a new email address with Yahoo or hotmail is fairly easy. But how about creating an email address just by thinking about it? If your name is Amar, you can have an email something like this...
amar@mailbucket.org
Think of any username and add @mailbucket.org next to it.
What is my password?
There is no password. You can check the email the way you check any other website. The last 10 emails sent to shantanuo@mailbucket.org are available at
http://mailbucket.org/simple/shantanuo/
What about security?
Security exist only in your imagination.
Can I forward, reply or delete a mail?
You can not forward or reply. There is no need to delete it since only the last 10 mails are saved on the server.

It seems to be a useless idea. How can I use it?
There are a lot of emails one receives those are not private in nature. For e.g. Newsletter from a site, Google Alerts, greeting cards, jokes etc. You don't mind if you miss such emails. While you subscribe for such services, use your you@mailbucket.org email address. Don't create one more fake email address for such purpose. If you do so, You will need to remember one more password, check frequently to keep it alive and it will also mess up with your friends list in your messenger.

mailinator.com

dodge it is a combination of disposable email address and RSS feed of the same.
http://dodgeit.com