Basic Authentication Transition Guidance: AuthSMTP for Thunderbird

The following instructions apply only to users whose Thunderbird programs were setup to send email through the deprecated AuthSMTP system.


    • Open Thunderbird
    • Click Help in the menu bar > About Thunderbird

    • Click Check for Updates and wait until the updates download. Click Update. Continue checking for updates until your Thunderbird is on version 78 at the earliest.

    • Click Tools > Account Settings

    • Click Outgoing Server (SMTP) > Click ‘Edit…’

    • Change your Authentication method to OAuth2

  • Quit and reopen Thunderbird
  • Enter your uChicago credentials in the window pop up and complete 2 Factor Authentication