Enable Undo Send - Go to Gmail settings, find the "Undo Send" option under the General tab, and set the cancellation period to your preference (5-30 seconds).
Sending an Email - Compose and send your email as usual. Look for the "Message sent" notification at the bottom left of your screen.
Click Undo - Within the set cancellation period, click the "Undo" button that appears in the notification to retract your email.
Email Recalled - Your email will be recalled and reopened as a draft, allowing you to make any necessary changes before resending.
Mobile Devices - The "Undo Send" feature is also available on the Gmail app for both Android and iOS, ensuring you can recall emails on the go.