I want to back up old mailboxes stored in the On my Mac section of the Apple Mail mailboxes, and then erase those (in order not to overburden the Mail app; it takes ages to launch these days).
From the Import sidebar I archived several mailboxes from the On my Mac location. Then I took the fateful step of deleting the source mailboxes. After that, whenever I go to the import sidebar and click on the Apple Mail location, Devonthink 3 goes into a spin and I have to Force Quit.
In hindsight, I realize that the Archive option is not meant to backup mail boxes I want to delete from the Mail App. Which leads to my first question. What is the best way to import mailboxes I mean to delete in the source? Should I rather have chosen Import in this usage case?
My second—rather pressing—question is, how can I possibly return to using the Import sidebar in order to archive mailboxes I mean to preserve in the source — in other words, how I can I nudge DT3 to gracefully deal with the mailbox mismatch (and stop going into a spin) whenever I press Apple Mail in the Import sidebar?
My third question is: going forward, can I sometimes choose Import from the Import sidebar in order to archive mailboxes I mean to erase, and other times choose Archive to update mailboxes Ii mean to keep? Or is it an Either/Or decision?
Thank you in advance for any lights on these matters!