OK, so I set up automated email archiving and moved the db to a network folder. After all calamities have been resolved and the automated archiving has run, I cannot find any archived email.
Actually, all emails between 24.10.2018 and 18.6.2020 are gone from the inbox and cannot be found in the archive folder (except, weird enough, 3 mails on a very special topic, which I did not realize that were saved).
Not being a beginner, I have changed the setting back to the db on my local disc. And restartetd em Client. Now, for a brief 5 seconds or so i could actually see, that there were older emails from the beginning of 2020 but, puff, instantly gone and the restored views look just like the one that I had just left on the network drive.
OK, long story short: I am missing about 700 emails between Oct 24 2018 and Jun 18 2020 and I don’t know, where to look any more. Does anyone have a suggestion, where they could have been archived to?