Open Outlook and go to your Sent Items folder
Double-click the email you want to retract
Select the Message tab
Click Actions
Click Recall This Message
Select whether to delete unread copies or delete unread copies and replace with a new message
If replacing, click OK and compose the replacement email
Confirm the recall by clicking OK
Check the recall status using the message notification or the Recall This Message option results
If you don’t see Recall This Message, use the undo/send-later options available in your Outlook version or contact the recipient directly