Thunderbird tried to compact an Inbox folder that contained a large number of emails, but something went wrong and I kept getting the error message about not having enough space or authority. Eventually it stopped, but all emails in that folder back to 2021 disappeared. Tried the repairing folder option, that had no apparent effect. Now it loads new messages just fine, but all those for the last four years are absent. I have it set to leave messages on the server, and indeed they all are. So I should be able to get Thunderbird to re-load them, right? But I have searched in vain for any instructions on how to do this, and cannot figure it out. Is it possible?