Importing Mail mailboxes to new iMac, preserving hierarchy
Transferring hundreds of mailboxes? I have about 600 mailboxes on my older iMac that I need to move to my new Tahoe iMac. Apple instructions are incomplete and don't help. I've already "exported" all those mailboxes to an external hard drive. Now, how do I import dozens (or more) mailboxes at one time and protect the hierarchy of their organization?
iPhone 8, iOS 16