I was running Xeams in spam firewall mode for a long time on Qnap NAS. All good mail was transfered to a internal dovecot mail server. Yesterday I did a firmware upgrade on the NAS resulting in no longer working dovecot.

I changed the configuration for Xeams to run as standalone SMTP. I'm able to send and receiver mail, all works well.
How can I import / restore all my previous mail?
I have a history of all mail sitting in the GoodEmails folder, and I have the original mails still available as files in my dovecot backup.

Whatever I try, I can't seem to trick Xeams in to (mass)reproducing al my old mail. Tried to copy en EML file from GoodEmails into ProcessingMessages or a copy from my dovecot inbox, but Xeams ignore these files in de ProcessingMessages folder.

I have no problem with some manual actions, but how can I let Xeams (re)process these type of mail files when I put them in some processing folder ?