I don't expect a reply. I'm simply reporting what I believe to be an error. I found an Email in my Junk folder that was a billing notice from one of my utility companies. I right clicked on the Email and selected Mark as Not Junk. The message was instantly deleted EVERWHERE. It is not in any folder. I then tried searching for the sender (customerservice@...). The sender's address was instantly found by the search tool, but it stated that NO MESSAGE existed from that sender. I don't think that marking an Email as Not Junk should completely erase the message from Thunderbird. Rather, I think it should be placed back in the Inbox folder or perhaps the Deleted folder. I'm using Thunderbird 128.5.2esr (64-bit).