Found this link below...
https://discussions.apple.com/thread/252271052
Tried the suggestion: to removing that Account from your Mac, followed by adding it again.
No luck. The formatting of a particular email must be causing it to crash.
Do I have to go back to my back up and wipe my main drive and copy a fresh back up? Seems like a lot of effort just to restore it
Any help appreciated
https://discussions.apple.com/thread/252271052
Tried the suggestion: to removing that Account from your Mac, followed by adding it again.
No luck. The formatting of a particular email must be causing it to crash.
Do I have to go back to my back up and wipe my main drive and copy a fresh back up? Seems like a lot of effort just to restore it
Any help appreciated