Change the Authentication method to OAuth2 to the following and then click OK:.Select the Office365 (Microsoft) smtp server and click edit on the righthand side.Navigate to Outgoing Server on the left-hand panel of the account settings screen.Navigate to Account Settings > Server Settings > Security Settings > Authentication Method and select OAuth2 from the Authentication Method dropdown.

Note: Now if you try to navigate to the Mailbox that was just added, you will be prompted to enter in your password. Click Done to confirm the creation of your account.Thunderbird should automatically discover and fill in the server settings necessary for your account:.

Email Address: Enter do not enter in your password on this login screen.Your name: Your name as you'd like it to appear.On the Mail Account Setup window, enter information into the available fields as follows:.Select Email under the Setup Another Account section in the main window. If you have other accounts configured, you can navigate here by clicking on Local Folders on the lefthand side.

Launch Thunderbird to bring up the main Thunderbird interface.

Note: These instructions assume you are running a version of Thunderbird 77.0b1 or later which supports OAuth2 modern authentication. This document describes how to configure your UWM Office 365 email account in Thunderbird using OAuth2 (Modern Authentication).

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