Office 365 (Thunderbird) - Configure Modern Authentication

This document describes how to configure modern, 2 factor authentication with new ThunderBird versions

Note: These instructions assume you are running a version of Thunderbird 77.0b1 or later which supports OAuth2 modern authentication.

Configure Thunderbird for Office 365

  1. Launch Thunderbird. If you have no other accounts configured, you will be prompted to configure a new account. Otherwise, click on Display the Thunderbird Menu button. Select Options | Account Settings | Account Actions | Add Mail Account.
  2. On the Mail Account Setup window, enter information into the available fields as follows:
    • Your name: Your name as you'd like it to appear
    • Email Address: -
      • NetID Account: Enter netid@wisc.edu
      • Service Account: Enter name_domain@wisc.edu\username_domain
        For multi-level domains, name@domain1.domain2.wisc.edu, use the following format: name_domain1.domain2@wisc.edu.

      Important: do not enter in your password on this login screen. Only enter your email address and name.

      Note: if you don't know whether you are attempting to configuring a NetID account or a Service account, please contact your domain administrator or the DoIT HelpDesk.

    account setup screen
  3. Click Continue
  4. Thunderbird should automatically discover and fill in the server settings necessary for your account seen below:
    mail account setup screen
  5. Click Done to confirm the creation of your account. You will then be prompted to enter in your password. When this happens, hit cancel.
  6. Navigate to Account Settings > Server Settings > Security Settings > Authentication Method and select OAuth2 from the dropdown.

    Reconfigure authentication - Server Settings

  7. Navigate to Outgoing Server on the left-hand panel of the account settings screen.
  8. Select the WiscMail smtp server and click edit on the righthand side
  9. Change the Authentication method to OAuth2 so that it appears as it does below and then click OK.

    Outgoing Server Settings

  10. Now, when you attempt to view your inbox, instead of being prompted for your password by thunderbird, you will be redirected to authenticate through DUO.
  11. After authenticating in step 10, the setup is complete. Email data will take some time to sync. BE PATIENT.

Important: Please complete these steps before using your Thunderbird client.

Configure Access to the Campus Directory (Whitepages)

Remember: Thunderbird cannot access the Office 365 Global Address List (GAL). Therefore, you may still need access to the Campus Directory (Whitepages) to find the person you are searching for.

Use these instructions to configure the Campus Directory (Whitepages) within this client.