This article describes how to use OneLogin to authenticate your Outlook 365 account. 

Before you can perform these steps you will need to configure SSO to Office 365 from OneLogin.

User authentication through Microsoft Outlook is supported via Modern Authentication. Modern authentication (which includes multi-factor authentication and SAML identity provision) is enabled by default in Office 365 services.

Note: Outlook 2013 and above supports modern authentication to connect to Office 365. Office 2010 or earlier do not support modern authentication and can only use basic authentication.

Outlook for Windows will display the screen below. Supply your name and email address, both of which must match your OneLogin and your Outlook credentials, then enter the password that you use for OneLogin.

On Windows, click Sign In when you see this screen. 

Enter your email address on the Sign in screen. 

You will be redirected to the OneLogin authentication page, where you'll use your OneLogin credentials to sign in. 

Note: if you're using Desktop Single Sign-On or OneLogin Desktop Certificate, you'll be signed in automatically. 

 

If Multi-factor is enabled on your account, the next screen you will see if the OTP prompt. Once you accept the Multi-factor authentication, Outlook will redirect back to email and you'll be signed in to your Outlook 365 email account.