Exchange Online – Enable Modern Authentication

In this blog posts, I will show you how to enable modern authentication in Office 365 Exchange Online.

Modern authentication removes the need to use an app password when enabling Multi-factor authentication in Office 365.

If your subscription was created before 2016, you might need to enable Modern authentication to stop using an app password with applications like Outlook, Skype, Teams and more.

Get Started

The first step in this process is to connect to Exchange Online using PowerShell and the best way to do it is using Cloud Shell.

In my previous post, I showed how to use it.

To check if modern authentication is turned on or off for your Exchange Online tenant run the following command.

Set-OrganizationConfig -OAuth2ClientProfileEnabled $True

To enable modern authentication, run the following command.

Set-OrganizationConfig -OAuth2ClientProfileEnabled $True