Cannot move or delete defective email messages.
I cannot move or delete defective email messages. When I try to move them, I get the following error "The file “68631.emlx” couldn’t be opened because there is no such file." This problem has been passed through Apple engineering 4 times, but no resolution. Inbox, Sent, Draft all have defective messages in them. The problem seemed to have started when I upgraded to El Capitan. Any thoughts on how to get rid of the defective mail?
iMac, OS X El Capitan (10.11.2)