Question: How to move my iCloud self generated mailboxes to Mail on my Mac?
After upgrading to MacOS Sierra (and having to rebuild my gmail account) the Mail program on my iMac (OS10.12.6) lost my self generated iCloud mailboxes. The mailboxes are still available on iCloud. How do I get them to appear on the iMac again? I have tried the plus icon next to iCloud in Mail. This prompts me to add a mailbox. When I try to add one of the mailboxes that doesn't show up, it says I can't add it as it already exists. Time machine needs the folder you want to be restored to be open. Since the folder is gone this doesn't work. Looking forward to help.
iMac, iOS 11.2.6