How do I back up my mail so I have an actual copy of each email?
When I export a Mailbox all it does is make an alias to that mailbox. If I open it, it opens my IMAP mailbox. I want to backup my emails so that I have an actual copy of the email I can find. Shouldn't be too tough. Why do I feel like I go through this problem every couple of months?
iMac 21.5″, macOS 10.13