Outlook allows you to recall an email message that you've sent if the recipient has not yet read it. However, there are some limitations to this feature:
If these conditions are met, here are the steps to recall an email in Outlook:
Open the "Sent Items" folder in your Outlook.
Double-click on the email message that you want to recall.
Click on the "Actions" button in the "Message" tab of the ribbon.
Select "Recall This Message" from the drop-down menu.
In the "Recall This Message" dialog box, choose whether to delete the message or replace it with a new one.
Select the "Tell me if recall succeeds or fails for each recipient" checkbox if you want to receive a notification of the recall status.
Click "OK" to complete the recall.
Note that even if you recall the message, the recipient may still receive a notification that you tried to recall it. Additionally, if the recipient has already opened or read the email, the recall will not be successful.