I have noticed the past couple of days all of my mailboxes under my iCloud account are missing. I can see them on my iPad and on iCloud.com I am running the Yosemite beta..
any solutions to bring them back? I have rebooted the machine plus .
thanks for your help! I used them for all my clients emails etc.
I'm having a similar but different problem. My iCloud mail can be see just fine in Mail on the updated Yosemite Public Beta, but my smart mailboxes are empty now. Search (within Mail) doesn't work at all either.
For example, I have a smart mailbox called "unread today." You can guess the criteria on that one.
I can see the new mail in my inbox, but all the smart mailboxes resolutely pretend that there are no emails that match. I've restarted, done a safe boot (didn't work there either), tried deleting and re-creating the smart mailbox, nothing. The search function is just maddening, as I can see the target of the search, but the search comes up empty.