undo send officially on Gmail: The emails they are sent automatically when you press it button shipment after their retirement. Once they're gone, there's no way to reverse the mission, which sometimes it can be problem.
For example, if after sending you notice that you have added the wrong recipients, or you sent the email while you were angry-angry, or because you used the wrong account, or because you discovered after a holiday that you had too manygraphics Mistakes.
Google today introduced the new "undo send" feature in the Gmail web interface. The new feature will keep email on Google servers for a short time before it leaves and disappears to its intended destination.
The feature started as an experiment and to activate it you would have to do it from the department labs in Gmail settings.
But today, if you check your Gmail settings, you'll notice that the new feature has been fully added to Gmail.
The new function must be activated and work a bit like the experimental feature.
To activate you should follow the link below:
https://mail.google.com/mail/u/0/?pli=1#settings/general
In "Undo Send" or "Undo Send" select the "Enable Undo Send" box. You can also adjust the period cancellations. The default is 10 seconds but you can change it from 5 to 30 seconds.
After saving the settings, each time you send an e-mail, the message "Your message has been sent." there will also be an option "Undo."
(*) If you don't see the new feature yet, please be patient until the servers of Google.