Microsoft has introduced a new visual indicator on Outlook profile cards to help users easily recognize external participants in email conversations. This update should enhance awareness when communicating outside the organization and reduce the risk of unintentionally sharing sensitive information.
Timeline
The visual indicator should be available since September 2025.
Impact for your users
Users will see a distinct visual indicator on a person’s profile card whenever the participant is external to the organization. The indicator is available by default in Outlook for the web and the new Outlook, helping users collaborate more safely by making external status clearly visible at a glance.
