When working with SAML SSO users, users may encounter a banner indicating that their email address is not verified, prompting them to verify it:Outlook users, however, may see the following screen when clicking the verification link:
The above screen only displays “??” without the actual email content, preventing users from verifying their email. This issue occurs because the Outlook application blocks the email content, preventing the verification details from displaying. While this will be addressed in a future update, a temporary workaround is to open the email in a web browser or on a mobile device rather than in the Outlook application.