How can I recall a sent email message?
You can only if you are trying to recall a sent email within a closed Outlook email system – many companies would use this kind of “closed system”. If it’s one of those, then you would got to your sent folder, open the email in question, then under tools you would see an option for “Recall sent message” and that would recall the email only from computers in that closed system, and only emails that hadn’t been read yet and only if that computer is on.(I’m going by memory on that exact phrasing). But email to the rest of the world… nope, can’t do it.