It happens. You made a mistake.
How do you “take back” or recall an Outlook email message that you already sent? How do you recall a message and replace it with another one? Go to your Outlook Sent Items folder first, and then recall that message! Quickly!
Here’s how:
Make sure you are on the Message tab. Select the Actions drop-down arrow in the Move box and click Recall This Message. The Recall This Message dialog box opens. Note: The dialog might display a message notifying you that the recipient has or may have already received and read your original email.
Can’t find Recall This Message?
You can recall messages only when you have a Microsoft Exchange account, and the recipient of your message is also using an Exchange account. If you don’t see Recall This Message on the Outlook Actions menu, you can’t recall messages. The option to recall a message is not available if you’re using a POP3, IMAP, or HTTP email account (for example, MSN Hotmail).
--David Ludwig