It is evident from above that the reason behind this situation is Keychain Access password. Why does Outlook 2016/2019 Asks for Password So, whenever the issue arises in Keychain Access, Outlook 2016 for Mac Keeps asking for password office 365. Outlook Mac Keeps Asking for Credentials It is a default application in Mac and saves the information of email account login. This issue occurs in Mac Outlook because of corruption in the Keychain Access program. It stops the authentication process and keeps asking for the password again and again. Many at times it happens that when Mac Outlook users enter the credentials while making a connection with Office 365. Resolved: Outlook Mac Keeps Asking for CredentialsĪre you looking for a solution to fix Outlook Mac keeps asking for credentials? If yes, then your search ends here as through this blog, I will be explaining some effective methods to resolve this issue.