Hi I downloaded messages from my INBOX from 2012 to 2016 to Local Folders free some space on the server. After they were downloaded, I deleted them from my mail server. I downloaded also OUTBOX 2012 - 2016. After that I look at INBOX in Local Folders and the whole 2015 was GONE!!! In the attached picture you see, what Thunderbird did to my Emails. WTF?!? Why?!? MacOS Catalina, 10.15.5, Thunderbird 68.12.0. Anybody has an idea, how to get the emails back?!?