How do I install and use Undo Send to recall sent emails in Apple Mail?

How do I install the Undo Send Plug-in?

1. Visit our Undo Send page here.

2. Enter your email address, agree to Terms of Service and Privacy Policy and then click Get download link.

3. You will receive an email with a button through which you need to confirm your email address.

4. You will receive another email with the download link.

5. Click the download link to start downloading the plugin installer.

6. Double-click the downloaded .zip file (if not automatically extracted by your browser), then open up the .pkg file. Follow the on screen-instructions to install the plugin.

7. During Installation, the following prompt may pop up if you are on macOS 11 Big Sur or later. Giving permissions here by clicking OK allows the Installer to automatically activate the Mail Plug-in for you. If you do not see this prompt or click Don't allow you will be given instructions on how to activate it yourself.

8. Continue and finish the installation.

9. Once the Undo Send plug-in has been successfully installed, you will see a Welcome screen.

How do I activate the Undo Send Plug-in?

If you are using macOS 11 Big Sur or later and you have granted permissions in the dialog above, activation of the Undo Send Mail Plug-in is done automatically and you are ready to go.

Otherwise, please follow these instructions to activate the Plug-in yourself in Mail:

1. Open Apple Mail and from the menu bar, choose Mail -> Settings. 
(Please note that if you are using a macOS older than macOS Ventura, you need to go to Preferences, and not Settings.)

3. A new window will open. Go to the General tab.

4. Click Manage Plug-ins…

5. Tick the box next to UndoSend.mailbundle.

6. In the pop-up message that opens, click Allow Access.

7. Then, click Apply and Restart Mail.

How do I use Undo Send?

1. Compose your email and click on the Send button.

2. The Undo Send popover will open from your menu bar. Click on the Undo Send button to recall or edit your email. Click on the Send button to send your email without further delay.

3. If, in your Undo Send settings, you have selected Never under Show menu bar icon, you will not see the popover. Instead you will have the option to recall emails from your outbox.

Where can I find my settings for Undo Send?

1. Open Apple Mail and from your Mac menu bar select Mail -> Settings. 
(Please note that if you are using a macOS older than macOS Ventura, you need to go to Preferences, and not Settings.)

2. A new window will open. In the new window, go to the Undo Send tab.



3. Here you can find all your settings for Undo Send.

You can set:

• the delay time for your emails
• whether you want to have the Undo Send icon in the menu bar Always, On demand or Never
• -> If you select Never, you will not see the Undo Send popover. Instead, you will be able to recall your emails from your outbox.
• whether you want to have a popover (through which you can recall your email) showing automatically when sending an email
  -> If you disable the popover, it will not show automatically and you will need to click on the Undo Send icon in your menu bar to display it.
• your keyboard shortcuts for Undo Send
  
  

For general information about Undo Send, see here.