Please also note that at the present time, these settings will only allow the mailbox to receive mail. Future version updates may resolve this issue. Version 102.7.0 appears to have this issue, necessitating a downgrade to 102.6.1. Please note that some revisions of Thunderbird appear to have issues resolving user name and password authentication, necessitating a down version install of the software. We expect those who turned them off to be adequately technically skilled to find out for themselves which ones are required for Thunderbird to function.To use Thunderbird, you will need to be running version 77.0b1 or later which supports OAuth2 modern authentication. Those who turned cookies off won’t be able to sign in. In order to sign in, cookies are necessary. Go to Account settings (item Configuration in context menu) and here check the assignment of folders for deleted mail, sent mail, for archive and for drafts.In order for Thunderbird to show you your subscribed folders, it may be necessary to restart the application. Some folders only have meaning for Outlook, such as Problems with synchronization or Outgoing mail. Some folders are related to other functions in Office 365 mailbox – Tasks, Diary, Conversation history, Calendar, Contacts, RSS subscriptions, Notes. Their names may differ based on localization settings of your mailbox.

Then you can choose individual folders to subscribe to. Out of the box, only Inbox is displayed, so subscribe to other folders – in context menu in your account choose Subscription manager:

Configure which folders should be displayed in Thunderbird.

A screen with confirmation of required permissions for the Thunderbird application then follows. At the bottom, press the Set manually button and change the authentication to OAuth2, and if need be also the user name:Īfter submitting (button Done), a school Office 365 sign in page should be displayed.

It’s necessary to correct method of authentication and user name. After pressing the Continue button, Thunderbird will find settings for IMAP and SMTP: At first while setting up your account you’ll enter your name and e-mail address.

I also recommend you to read How to Configure Thunderbird for Office 365 Using IMAP (Oauth2). Office 365 uses the OAuth2 protocol, which is supported in Thunderbird since version 78.

Thunderbird 365