Recently I reinstalled macOS, and discovered that the search feature was not working properly in Outlook 2016 for Mac.
Using these instructions from Victor Sachs on this page, I was able to get it to work after Spotlight reindexed everything:
sudo mdutil -i off /
sudo rm -rf /.Spotlight*
sudo rm -rf /.metadata_never_index
- restart the computer
sudo mdutil -i on /
sudo mdutil -E
Hopefully this will come in useful for you in the future. Thanks, Victor.