[Troubleshoot] Error Authenticate Office365 Accounts

Problem Symptoms:

Got an error authenticating the Office365 accounts via Basic Authentication.

Description:

1. 2FA is probably turned on for the Office365 accounts. 
2. Some security policy from the email admin side doesn't allow basic authenticate for connecting the Office365 account to other software.

Resolution:

Resolution 1:

• Keep using the Basic authenticate. However, you will probably need to create an app password, and use that as the password to authenticate their Nylas account: https://developer.nylas.com/docs/the-basics/provider-guides/app-passwords/#microsoft

Resolution 2:

• Create an Azure app for your Nylas application, this will allow the Office365 accounts to use OAuth instead of Basic authentication. https://developer.nylas.com/docs/the-basics/provider-guides/microsoft/create-azure-app/

Resources:

Create an app password: https://developer.nylas.com/docs/the-basics/provider-guides/app-passwords/#microsoft

Create an Azure application for Nylas application: https://developer.nylas.com/docs/the-basics/provider-guides/microsoft/create-azure-app/

Updated April 24, 2024 18:45