How to undo send in gmail

Did you ever knew that you can undo a sent e-mail in Gmail? It is a lesser known feature, but Google made it even better than it was before. When it was first introduced, you were given just five seconds window during which you could hit “undo.”

Now that’s up to 30 seconds.

This feature is hidden from most of the users who don’t know where it exists. Be aware that the feature is part of Gmail Labs, though. That means it’s still in testing mode and it might not always work as intended.

Procedure:
1)login to your gmail account.
2)In your google mail page click on the green conical flask button