Outlook for Mac keeps asking for password of Office 365 account

Outlook for Mac Keeps Asking for Password of Office 365 Account

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Many users have reported that Microsoft Outlook for Mac keeps asking for the password of their Office 365 account. Thanks to readers of my blog, we have finally fixed the issue for most users. For others, we have at least a temporary workaround until Microsoft provides a fix.

Outlook: Mail could not be received at this time

Like so many other users, I have experienced this problem in combination with my company’s Office 365-hosted Exchange account. Microsoft Outlook 2016 for Mac would randomly but repeatedly prompt me to enter my username and password. The exact error message reads:

Mail could not be received at this time: The server for the account [account] returned the error “Logon failure: unknown user name or bad password.” Your username/password or security settings may be incorrect. Would you like to try re-entering your password?

Outlook for Mac keeps asking for password of Office 365 account
Mail could not be received at this time