ok, it may not have been the best idea this side of the galaxy to import all my mails - about 3M of them - into one database. So now I want to move e.g. one year worth of mails into a separate database. I’ve disabled spotlight search for both source and target databases. I’ve tried drag-and-drop as well as Date - Move, but the moment I do the move, the beach ball appears, and that’s it then. DTPO uses 100% of CPU and does not come back.
Is there any other way to recover the mails? I can use “the big database”, albeit it’s very slow, but when I try to move data, it just doesn’t work.