- The new feature “Ex Post Deletion” is available to 365 Total Protection Enterprise customers. Administrators can activate this feature in the “Advanced Threat Protection” module. After that, administrators can trigger the deletion of already delivered emails from their users’ Microsoft 365 mailboxes in the “Email Live Tracking” module. Besides, users can delete emails from their own Microsoft 365 mailboxes. This feature is especially useful for emails that “Ex Post Alert” has subsequently classified as threats.