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poiuytrewsdfghjk
User level: Level 1 (43 points)

"All Mailboxes" greyed out in Apple Mail on Mac mini M4 running 27.2

For some reason, in Apple Mail, "All Mailboxes" is greyed out in my sidebar. This just happened recently, and is only like this on one of my computers Mac mini M4 running 27.2. I've restarted, and reinstalled, but it is still greyed out, which means I cannot see all mail in one place. I have smart mailboxes, and lists of individual mailboxes, but just regular all mail is suddenly not an option.


Any suggestions besides what I've already tried to solve this?

Posted on Oct 30, 2026 9:25 AM

2 replies

6x6
User level: Level 7 (26,777 points)

Oct 30, 2026 4:42 PM in response to poiuytrewsdfghjk

Right-click All Inboxes and choose Remove from Favorites. Then hover the mouse over Favorites in the sidebar, click the "+" icon and add All Inboxes again.

poiuytrewsdfghjk Author
User level: Level 1 (43 points)

Oct 30, 2026 6:43 PM in response to 6x6

Thanks!

Originally posted at discussions.apple.com/thread/256385982