How to unsend an email in new Outlook with Undo Send

This guide shows you how to turn on and use the Undo Send setting in the new Outlook so you can pull back an email right after you hit Send. It suits anyone on a personal or work account who wants a short safety net before a message is delivered. You only get a few seconds, so set the longest delay available.

How to Cancel a Sent Email in New Outlook (Undo Send Setting), by Learn TECH on YouTube. 1 min 58 s.

Video length
1 min 58 s
Time to do it
2 minutes
Difficulty
Easy
Steps
8

What you need

Steps

  1. Open the new Outlook app or outlook.com and sign in to the account you send mail from.

  2. Click the Settings gear icon at the top of the window to open your account settings.

  3. Select Mail in the left menu, then click Compose and reply.

  4. Scroll to the Undo send section and pick the longest delay on offer, which is usually 10 seconds.

  5. Close the settings panel so your choice is saved, then write a new message as normal.

  6. Click Send, then watch for the Undo bar that appears at the bottom of the message list.

  7. Click Undo before the countdown runs out to stop the email from being delivered.

  8. The message reopens as a draft, so fix the recipients or delete it before sending again.

Tips and common mistakes

Undo Send is just a delay before delivery, so once the countdown ends the email is gone and cannot be pulled back.

If you do not see the setting on a work account, your IT admin may have turned it off for your organisation.

After you click Undo, check the draft for the wrong address before you send it again.

For important emails, write the recipient last so you are less likely to send to the wrong person.

Questions

Can I unsend an email after the delay has passed?

No. Undo Send only works during the short window you set, usually up to 10 seconds. After that the message is delivered and you would need to ask the recipient to ignore it.

Where is the Undo Send setting in new Outlook?

It sits under Settings, then Mail, then Compose and reply. Look for the Undo send section and choose your delay from the dropdown.

Does Undo Send work with a work or school account?

Usually yes, but your organisation can limit or remove the option. If the setting is missing, ask your IT admin whether it is enabled.

This guide was drafted from the video's details and general task knowledge. It has not been checked against the full video. Check the video and relevant product instructions before following a procedure. Report a correction.

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