How to undo send mail in gmail ?

You all use Gmail for email service but here i am going to write about a cool feature of Gmail. I am sure you don't know how to undo send in Gmail. Gmail has a feature by which you can do it but by default this is disable and you have to enable it for use. How to Undo a Sent Mail in Gmail                    Login into your Gmail Account. Now Navigate to your Account Settings by clicking on the Gears button present at the Top right Corner and then Settings. Click on Labs button present in the Settings Menu. Now you will be able to see a search bar. Just type Undo send in it. The result will appear in the form of a small plugin feature and you have to just enable this feature by clicking on Enable and hit Save Changes. Now, that's it. You have enabled this feature in your Gmail account. If you wish to check it once then just Compose, Send and check it. Just compose any mail, hit on sent and you will be able to see an option saying Undo. And that's all. You just need to hit on Undo button if you wish to cancel that mail.

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