Unsend an E-mail in G-mail

Think of a situation where you accidentally sent an email by mistake and now you think you have no idea to correct your mistake. This is the situation for which the Unsend E-mail feature has been introduced by G-mail. It allows you to unsend an E-mail even after it has been sent.


Once you enable it, every time you send an e-mail will not quickly be sent , where as it will hold back the e-mail in its server for a few seconds to give you a chance to unsend, retrieve or modify the email in case you change your mind.

PROCEDURE

=> Login to your G-mail account

=> Click on Settings

=> Now choose Settings option in the drop down menu appeared after clicking on Settings

=> Now click on Labs

=> Scroll down on Labs page and you will see undo send option , enable it

=> Scroll down to the bottom and save the changes

=> You are done, try it and enjoy this feature
NOTE - You can also set the time for which it will hold back the email in server and will not be sent. Navigate to Settings < General < Undo send < Send Cancellation Period , choose 5,10,20 or 30 seconds according to your need.