One of things people really regret is sending something they wish they hadn’t straight after they’d hit the send button. Well, there is good news: Google has been working on, over the last six years, a feature under the Gmail functions which a lot of people didn’t know existed. It has been in the public beta version for most of the time. Google recently announced that they will be releasing the full version.
While it was in the beta version you could opt-in and test it, though it is not unusual for products in beta mode to have limited functionality. In the beta mode Undo Send would delay an email for five seconds before it send it away or you take it back and make alterations to it. However, in the new version you can set the delay to either 5, 10, 20 or 30 seconds before it sends the email.
It is notable, however, that the Undo Send feature is not available on mobile devices yet, although Google said they are intending to release on mobile devices very.