Google Mail - ISD 728

First, turn on Undo Send 1. On your computer, open Gmail. 2. In the top right, click Settings . 3. Click Settings. 4. In the "Undo Send" section, check the box next to "Enable Undo Send." 5. In the "Send cancellation period" section, set the amount of time you want to decide if you want to unsend an email. 6. At the bottom of the page, click ... ................
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