1. Gmail

2. Gmail Introduction to Gmail Setting up a Gmail account Sending Email
Responding to
Managing
Gmail for mobile devices
How to un-send an in Gmail

3. How to un-send an email in Gmail

4. How to un-send an email in Gmail
It happens to all of us. You click Send, then realize you've made a mistake.
Maybe it was just a spelling error.
Maybe you hit Reply All by accident. Or
Maybe you sent the to the wrong person, and you definitely, definitely don't want that person reading it, because it might contain something super embarrassing.

5. How to un-send an email in Gmail
If you use Gmail, you're in luck.
Gmail has recently introduced a feature that lets you unsend any  up to 30 seconds after you've sent it.
This feature—called Undo Send—must be turned on before you can use it. Afterward, you'll be able to take back your most recent in a single click.

6. To enable Undo Send Go to your Gmail account.
Click the Settings button in the upper-right corner, then choose Settings from the menu.
Make sure you're on the General tab, then scroll down to Undo Send.
Check the box that says Enable Undo Send. You can choose a cancellation period of up to 30 seconds.

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