Hi! I have recently installed Thunderbird (version 145.0 (64-bit) on my PC (I have Windows 10) and have configured my IMAP account without any real issues. Except from one thing: Among my email folders (rather much in the bottom of the folder structure) I see a bunch of "weak" folders (see attached image) – with the name in a greyish tone rather than the normal black. None of them contains any emails (in other words empty), but they seem to be copies of random existing folders as well as previously deleted folders. They all have the same prefix – ”INBOX” When I right click on them I can delete them, but as soon as I restart Thunderbird (and/or the computer) they reappear. I have already tried the following: 1. Going to Settings -->Account Settings --> Server settings and ticking the box Clean the Inbox at closing. That didn’t solve the problem either. 2. Right click on them and going to Properties and tried Repair folder. Nothing happens. (I might not have the right terms/vocabulation since I have the Swedish version of Thunderbird.) My questions regarding this matter: 1. Why do these folders appear in the first place? 2. Is there a way to get rid of them? Thanks in advance.