outlook mac keeps asking for password for onmicrosoft

So, run us through what this change is all about, and why it is important.ĬHET.

So I figured, “What better confluence of issues than that?”Įxchange Online is finally forcing people to switch from what Microsoft referred to as Basic Auth to a thing called Modern Auth.

…and because it involves a thing called OAuth 2, which I know that you are well-informed about, and keen on. Now, I chose this topic because it just happened to coincide, inadvertently if you like, with the ProxyNotShell/ExchangeDoubleZeroDay problem that Microsoft ran into at the beginning of October 2022… I’m Paul Ducklin, joined as usual by my friend and colleague Chester Wisniewski from Vancouver.ĭUCK. If you don't know your UPN, contact your administrator.įor more information about UPNs, see User name formats.Welcome to another Naked Security Podcast minisode! ResolutionĮnter your UPN in the User name field of the Accounts dialog box, and then quit and restart Outlook 2016 for Mac. In this situation, you have to manually enter your UPN in the Username field in the AD FS dialog box of your provider. You entered your email address in the User name field of the Accounts dialog box in Outlook 2016 for Mac.Your email address differs from your user principal name (UPN).This issue occurs if the following conditions are true: However, you're repeatedly prompted for your credentials after you've already entered them. When you try to connect to the Exchange Online mailbox, your provider's Active Directory Federation Services (AD FS) authentication dialog box is displayed, and you enter your credentials. You're using Outlook 2016 for Mac version 15.20 or later versions to connect to an Exchange Online mailbox through a federated account, and modern authentication is enabled.

Outlook mac keeps asking for password for onmicrosoft