Please refer to “How to check your Primary Mail Address” and make a note of your Kyushu University Primary Mail Address in advance. There are many inquiries about error messages cause by mistakes such as forgetting to include “@m” or “@s” to your email address. Be sure to check your email address without relying on your memory.
Launch Thunderbird. OAuth 2.0 authentication requires web cookies, so make sure that it is enabled. If “Account Setup” tab is shown, click “Home” tab. Click the top right icon and click “Preferences”.
Click “Privacy & Security” and enable (check) “Accept cookies from sites”. Close the preferences tab.
If there is no account configured and “Account Setup” tab is shown, select that tab and proceed to step 4. Otherwise, click the top right icon and “Account Settings”.
Click “Account Actions” at the bottom left and click “Add Mail Account”.
Enter your full name and your Primary Mail Address noted in step 0. Remove the check mark of “Remember password” and click “Countinue”. Please don’t enter your password here.
Thunderbird searches and shows available configurations. Confirm that “IMAP” is selected, and click “Configure manually”. Please do not click “Done” yet. “POP3” is deprecated and not recommended. “Exchange/Office365” is a paid extension for Thunderbird. You need to purchase personally if you want to use this option.
Manual configuration is shown. Change “Authentication method” of both servers to “OAuth2”, and click “Done”.
Enter your SSO-KID and password, and click “Sign in”.
If Thunderbird requests permissions to access your mail, click “Accept”. (It may not be asked in some cases.)
Click “Yes” in the following screen.
You are all set.
