MacOS Sierra Mail restores via Time Machne
How to reset Sierra Mail via Time Machine restores?
About 3 days ago, my Mail app ceased to retrieve new mail. The Connector Doctor will silently spin for 10-15 minutes, then stop with no messages and no new Mail. Other Macs and IOS devices continue to access Mail without problems. My guess is that something burped and I would like to restore the Mail app on this system to where it was 3 days ago, and see if that cures whatever went wrong. So what folders do I need to restore from Time Machine backups to bring this about?
iMac 27″ 5K, macOS 10.12