I'm using KMail Version 5.18.1 (21.08.1) on Kubuntu 21.10. I've configured GMail IMAP. Receiving EMails works as expected. I've also configured the GMail Trash folder via: Settings->Receive->Configure->Advanced. I've chosen the GMail Trash folder, then clicked ok. But it seems that KMail doesn't recognize it as the trash folder. I've no option to empty the trash folder. Also when I reopen the configuration dialog and try to choose the trash folder again, the list of GMail folders is empty. This happens always.