Undo email send

How to unsend sent email. There are many reasons you might want to undo (or redo) an email you sent. A common reason for me is that I just remembered something I wanted to add. Gmail has a little known “undo” feature that you have to enable. On the web, click on the gear icon in the upper right corner, select “Settings.” About a third-way down the list check “Enable Undo Send.” Pick the 30-second maximum grace period. Be sure to “save changes.” Now when you send an email in Gmail you get a little box in the upper center just below the blue/white magnifying glass in the search box, that says “Your mail was sent”. For 30 seconds you have the chance to click on “Undo”. It reopens your message to give you the chance to edit or delete. — KK