Accidentally replying all to a business e-mail can be one of the more horrifying experiences of modern workplace life. (And the excessive use of intentional reply-all is a scourge to be battled with great ferocity. Can we have manners, please?) Same goes for personal correspondence.
Google, in their great wisdom, has heard the cry of the people and responded with typical brilliance:
After years of experimenting with it as a Labs feature, Google announced that it was formally adding an “undo send” option for web-based Gmail users. (If you are a repeat offender on mobile, the Inbox app also has an undo feature.) The new tool allows users to choose a delay time from 5 to 30 seconds in case of a change of heart.