Nevermind, I figured it out. The emails get cleared off my email server periodically, so I guess they are gone forever My own fault I suppose...
Hi all. When I first got my laptop I created an archive and periodically moved old emails into folders in the archive. I had AutoArchive turned on, but I always clicked Cancel when prompted, so I didn't think that it ever actually ran.
Lately, however, when looking for some old emails, I haven't been able to find them. I checked my inbox, and it seems my messages only go back to about three months ago and stop abruptly - this corresponds to the criteria I have set for autoarchive, so I assume that it actually HAS been running.
The problem, though, is that I still can't find those old emails! I have no idea where in the archive they might be. There is no Archive folder, and there is nothing in the Inbox under that Archive. I have a very complex system of subfolders in this archive, so it would be enormously difficult for me to search each one, but I don't see why autoarchive would arbitrarily choose one of those folders in which to deposit these old emails. Any ideas where old my emails went?