Well. I've managed to remove all subfolders to the inbox on my work mail while moving all the messages to the inbox itself. That probably took.. 6-8h.. :neocat_laugh_tears:​ Also. I think I now have duplicates of every single message where one copy is marked as unread and one isn't (at least on the server side). (I don't know what I'm doing okay? Also, I'm working with some kind of Exchange server set up by microslop fanboys and it seems it doesn't actually support IMAP fully 🤷‍♀️ )