Using older versions of Outlook for Mac in business environments
After having tried all Solutions from the Microsoft Site the tip from subdetuned aquired from Outlook Support finally did it.
Ventura 13.2.1 - Outlook 16.70
( tried sudo mdutil -E ( -E Erase and rebuild index. ) before which did not fix it )
Open Finder and go to Applications - Utilities - Terminal and type the following commands (Press Enter after typing each command).sudo mdutil -a -i offsudo mdutil -a -i onNote: When prompted for a password, please type the Mac user password. This would be invisible. Please type the same and hit enter.Once done, restart the mac computer and wait for about an hour and check for the behavior.
Ignore error message for preboot volume, that is protected and cannot be indexed.
Reboot and let mdutil do its work ( Utilities -> Activity display -> ) takes........
In addition, the commands also made the search in the folder ( Finder ) functional again ( before that worked only under this Mac. )
-a Apply command to all stores on all volumes.-i (on|off) Turn indexing on or off.