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Undo Send

What This Does

Undo Send gives you a brief window after clicking Send to cancel delivery—default is 5 seconds, configurable up to 30.

Why It's Useful

Autocorrect disasters, wrong attachments, and reply-all regrets happen. Undo Send is your safety net.

How to Do It

  1. Settings → General → Undo Send
  2. Set cancellation period to 30 seconds (maximum)
  3. After sending, click Undo in the bottom-left toast
  4. Combine with reviewing the To field before Send

Try This Now

Send yourself a test email and undo it within the window.

Mental Hook: Five seconds to regret.