Confirmed 100% today Mail search is broken, not working? Is there anything I can do?

If I search with name, Mail will dig down into sub folders and find the email. Also, Spotlight will find it. But if I search with email (which is easier), Mail suddenly wont dig down to subfolders and find emails with that email. Only in inbox. Very frustrating. Was ok for last 5 years, just not last few weeks.

Last edited by dianne; 12/16/19 01:35 PM. Reason: Moved from "Mac OS X Applications."