User level: Level 1 (4 points)Not able to sign in with Microsoft Exchange on MacBook. (com.apple.accounts
error 3.)
I'm not a IT person so if you have any tips or steps I can follow, please explain clearly :)
Posted on Nov 3, 2026 3:54 AM
User level: Level 10 (242,520 points)Nov 3, 2026 6:55 AM in response to KimSpiekman
Unfortunately, there is currently no fix.
The connection between Apple Mail on a Mac and Exchange servers is currently broken. Microsoft changed the way the connections need to happen and Apple has not updated the Mac's Mail App to connect using the new method. For now, your options are either to use the free Outlook app from the Mac App Store, or log in to your Exchange server's web portal if one is set up to check your email.
iPhones and iPads are unaffected as they use a different method to connect to Exchange mail servers.
Originally posted at discussions.apple.com/thread/256388059