After upgrading to Catalina, macOS 10/15, when I launch Mail, Mail shows a window stating that it is updating my library, then crashes immediately. The Apple rep. believes that SpamSieve must be the cause of the crash. I am not certain. In any case, I have done everything that I can to uninstall, disable, and delete SpamSieve, but Mail still crashes soon after launch.
Is there any possibility that SpamSieve is causing these crashes? Does anyone have any other ideas about the cause?