You’re using Azure Information Protection.You are not using a Microsoft Exchange Server to handle your emails in Outlook.You are sending a message outside your organization.Recalling Outlook messages does not work if: Message Recall Option in Outlook Not Listed
This action opens the message in a separate window that presents different options at the top.
It might sound overly complicated, but do not worry recalling a message in Outlook is incredibly simple, no matter which version you’re running.