Step
1: Click on the icon "gear" in the upper right corner of your Gmail
window, and select "Settings" menu.
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| Step 1 |
Step 2: Select the
"Lab" from the Settings menu.
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| Step 2 |
Step 3: Scroll down
until you find the "Undo Send" and click on "Enable". Save
Changes
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| Step 3 |
Step 4: Click:
Settings> General> Undo Send, and select the duration of cancellation up
to 30 seconds. Save Changes.
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| Step 4 |
Step 5: Now after your
email sent, there will be the option to undo!
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| Step 5 |