My school recently migrated from Gmail to Office365 email hosting. My access to email through Thunderbird was bricked and I'm trying to get it up and running with the new servers. The school doesn't officially support Thunderbird so there will no be help from that end, but I'm hoping it's possible. The tricky part is the OAuth2 authentication. The school provided [https://service.northeastern.edu/tech?id=kb_article&sys_id=66dd48dcdb8af30062cdf9051d9619cc these instructions] for setting up Evolution mail client. I was able to get Evolution working successfully by following those steps. The question now is how to do the same in Thunderbird. I tried following along with [https://kb.wisc.edu/helpdesk/page.php?id=102005 these instructions] for connecting to an OAuth2 server, substituting the SMTP and IMAP settings given in the Office365 browser client. But trying to download my mail gives the error "The IMAP server outlook.office365.com does not support the selected authentication method. Please change the 'Authentication method' in the 'Account Settings | Server settings' My guess is that Evolution worked because it let me specify # Host URL # Tenant # Application ID as shown in the picture. Is there a way to do the same in Thunderbird?