Overview

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Configuring Thunderbird v78.0 to current is basically the same on the Mac and the PC. 

Steps to Take

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 You can also refer to our instructional video for a walkthrough on these steps. 

1. 1. Open Thunderbird.
   2. Under Accounts select Email.
      
      
      
      
   3. Click Add. 
      
      
      
      
   4. Use the following server settings: 
      
      • Your name as shown to others when they receive your email
      • UC San Diego email address
      • Password
      • Check Remember password
      • Use the following server settings:
        
        • Incoming:   IMAP, outlook.office365.com  Port 993, SSL/TLS Authentication: OAuth2
        • Outgoing:   SMTP, smtp.office365.com, Port 587, STARTTLS,  Authentication: OAuth2
        • Note: if you do not see the option for "OAuth2," try pressing "Re-test" and check again 
           
          
          
          
   5. After you have entered your information select Re-test, then Done.
   6. A UC San Diego login window should now open. Enter your UCSD email address and password then press Sign In. 
      
      
   7. Authenticate using Duo two-step.
      
      
   8. Thunderbird will now request permissions for your account. Press the "Accept" button in the bottom right. 
      
      
   9. Your email will now start to load and you will be good to go!