With message recall, a message that you sent is retrieved from the mailboxes of the recipients who haven’t yet opened it. You can also substitute a replacement message.
For example, if you forgot to include an attachment, you can try to retract the message, and then send a replacement message that has the attachment.
Message recall is available after you click Send and is available only if both you and the recipient have an Office 365 or Microsoft Exchange email account.
Navigate to the ‘Sent Items‘ folder.
Double-click on the message you want to recall. Click File
On Info tab, Select Resend and Recall
Select, Recall this Message
If you want to delete the message entirely, select the ‘Delete unread copies of this message’ option in the pop-up.
If you’d like to send a new message in its place, select the ‘Delete unread copies and replace with a new message’ option.