Yea, Its good property of gmail that you can undo a sent mail till 30 seconds after clicking on send.

For this you have to enable a feature on Gmail,…

Follow the simple steps 🙂

 

 

1. Open your Gmail Account

2. Click on Mail Setting

3. After that click on ‘Labs’

4. Scroll down and go to ‘Undo Send’

5. Make it Enable

6. Click on Save Changes

Now Compose a mail, after sending the mail, you will get a notification on screen like ‘Your message has been sent Undo

View Message‘.

Click on Undo, It is all 🙂

Enjoy 🙂 🙂