'Undo Send' Feature for Gmail

Did you clicked the send button involuntarily [ in the middle of something ]? 


Do you want to undo,the send mail?


the Gmail has the new feature, you have to enable it under Labs[ go to settings , click labs, find the [Undo Send] option, just enable it.]













When you send the message in the top of the page you can see,,,

Just click undo, u done :)