This method will introduce the Recall This Message feature to delete a sent email before recipients reading it in Outlook. Please do as follows:

1. In the Mail view, click to open the Sent Items folder, and then double click to open the sent email you want to delete.

2. In the opening Message window, please click Message > Actions > Recall This Message. See screenshot:

3. In the Recall This Message dialog box, please check the Delete unread copies of this message option, and click the OK button. See screenshot:

Note: It’s optional to check the Tell me if recall succeeds or fails for each recipient option.

4. Close the Message window of the sent email.

Note: If you have checked the Tell me if recall succeeds or fails for each recipient option, you will received notification emails as below screenshot shown when recalling successfully.

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