On a Mac running macOS Monterey. I keep getting a popup asking me to "Sign In to your account" with MS Logo and listing out historical MS accounts I no longer use. I don't appear to have any web pages opening triggering the prompt and I have removed all cached credentials as per this doc. I have Office365 which is licensed to a different email address and im signed into O365 using this email and its different than the ones being suggested when the dialog pops up. Feels like this a Modern Workplace Authentication prompt but I cant see how to cleanse it.

Any ideas?

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    You need to fix the account popping up (log in with credentials). There is not another way I know. Then delete the account it you are not using it (Microsoft Live Login)
    – John
    May 16 at 12:56
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    It sounds like a work laptop, right? Does this pop up only occur when you're not on the company's network (i.e. physically or through a VPN)? May 16 at 13:26
  • I would make sure you logout of your account in Office and log back into it. Sounds like Office is the culprit.
    – Ramhound
    May 16 at 14:04
  • I logged out and back in to office with my hotmail credentials and then a few hours later I was prompted with a login prompt that contained a listing of the credentials from my last contract position. Maybe this is Modern Workplace Auth rather than office. May 17 at 12:32
  • Have you tried the suggestion in my reply?
    – Christy
    May 18 at 5:38

1 Answer 1


Do you mean modern authentication?

If so, please check if it is your issue: You're repeatedly prompted for credentials when using modern authentication in Outlook 2016 for Mac.


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