This is but one solution (of the myriad of suggestions found online) that worked for me. Once you're signed back into iCloud on your Mac, you should automatically be signed back into Messages and FaceTime. Log out of iCloud on your Macįollow the instructions to keep or delete iCloud data like calendars, reminders, and photos from your Mac.Ĭlick your problematic Mac under My Devices. Step 4: Click or tap on the email account that you want to remove or that you want to. Step 3: Click or tap Manage Accounts to view all email accounts that have been added to the Mail app. Step 2: Click or tap the Settings icon to reveal the Settings pane. The fix involves getting Apple's servers to re-initialize your Mac hardware to be allowed to access your iCloud services. Steps how to sign out of an email account in Windows 10 Mail. But when prompted for my iCloud username and password, and after a long timeout period, I get an 'Authentication Error.' The potential fix

Trying to log into iMessage triggers my two-factor authentication mechanism as expected.

How to log out of mail on mac