Using Classic Outlook on Windows for personal email, calendar, and contact management
looks like its users that are on version 2305
we get the notification below :
if you try the new version of outlook, you get a security pop up
we have a cpl of users not updated and they are ok
and i don't think there is a way to roll back the office install version
Just started for me, getting this on Version 2307 checked some older versions and it's not an issue.
Work around is to send the links from Outlook web.
Hopefully a solution is found quickly.