To recall or replace a message, follow these steps:

  1. Locate the Sent Items folder. 
  2. Double click on the message you want to recall or replace. 
  3. Click Actions on the ribbon or menu, and then click Recall This Message.
  4. Enable the Delete unread copies of this message option to recall the message. Or, enable the Delete unread copies and replace with a new message to replace the message with a new one.
  5. To receive a notification about the success of the recall or replacement, enable the Tell me if recall succeeds or fails for each recipient option.
  6. Click OK. If you chose the replace option, type your new message and send it.