You send an email message, and then you start to have second thoughts. First, see if you can use recall.
Click Fileto go to the Backstage. With Infoselected, open the list at the top of the page, and select the account you sent the email from. If it says Microsoft Exchange, and your recipients are on the same email system, you can use recall, which is the feature of the Exchange server. Go to Mail and click Sent Itemsin your folder list. Then, open the mail you want to recall or replace. Click File in the message to go to the Backstage. With Infoselected, click Resend or Recall, and click Recall This Message.
Now you choose what you want to do: recall the message, which means that you want to try to delete the message from the recipient's Inbox, or replace the message, which means you want to delete the original message and replace it with a new one.