Most likely. The latest versions of Thunderbird do support Modern Authentication. As a result, you should be able to use it; however, it is not an officially supported mail client by UFIT. Other IMAP clients may or may not work depending on their support of Modern Authentication.

Automatically Configuring Thunderbird

After launching Thunderbird, add a new account and let the client try to negotiate its connection by filling in your full name and email address (using [gatorlink]@ufl.edu) only. Do not fill out the password, instead click the continue button. Thunderbird should automatically discover IMAP as the available configuration and fill in server settings appropriately. Click the “Done” button to move on. You should be directed to the UF login page to authenticate. If this does not work properly move on to the manual configuration steps below.

Manually Configuring Thunderbird

1. Navigate to Account Settings > Server Settings > Security Settings > Authentication Method and select OAuth2 from the “Authentication Method” dropdown.
2. Navigate to Outgoing Server on the bottom of the left-hand panel of the account settings screen. Edit the these settings as follows:
   • Description: University of Florida O365 (ufl.edu)
   • Server Name: smtp.office365.com
   • Port: 587 (default)
   • User Name: [your Gatorlink username]
   • Authentication Method: OAuth2
   • Connection Security STARTTLS
3. Now, when you attempt to view your inbox, instead of being prompted for your password by Thunderbird, you should be directed to the UF login page.

Make sure that cookies are enabled within Thunderbird if there are issues.