Thunderbird 102.7.1 breaks OAuth2 with MS365

Solution Verified - Updated -


  • thunderbird-102.7.1-1.el8_7 no longer authenticates to M365 IMAP account.
  • For IMAP, POP, SMTP authentication, thunderbird fails to authenticate Microsoft 365.


  • Red Hat Enterprise Linux RHEL 8.7
  • thunderbird-102.7.1-1.el8_7

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