Finally! Gmail added a new option to “Undo Send”!
Don’t you just hate when you send accidental replies, send email to the wrong recipient and just forgot to attach a file to the mail? Worry no more, this “Undo Send” feature will let you recall a message within 30 seconds after it’s being sent. Just click undo and delete all those WTFs and holy craps. Problem solved! It does afford you a few precious extra seconds for an “oh shit” moment.
If you already have the feature turned on, it stays on. If not, you can turn it on by going to the “general” tab under “settings.” You can choose between 5, 10, 20 and 30 second windows of unsendability. Make sure you hit “Save Changes” at the bottom and you’re all set.