I recently had to reinstall El Cap, and have been manually replacing my apps, prefs, etc.
The only app I'm still having trouble with is Mail. I used to have my Gmail accounts in the sidebar. But for some reason I cannot re-set-up Gmail in this Mail version. It just STALLS after I enter my creds.
So I tried to just replace my Mail files/prefs with those from my backup (before reinstall), but even though I replaced my /library/mail folder AND my /library/preferences/…plst file, I still do not see my previous accounts in Mail.
What files do I need from my backup to make my Mail exactly like it was prior to my reinstall?