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In the browser window that appears, provide your password (again) and do the second-factor authentication.Username: Click Re-test, and if it fails (because OAuth2 wasn't available as Authentication in step 4 or 5), change it now for BOTH IMAP and SMTP and click Done.Username: Provide these SMTP settings:.Authentication: OAuth2 (if listed), otherwise Normal password (will fail the first time).
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After "Authentication failed" click Configure manually.Provide: Name, Email address ( and O365 password, and click Continue.Tools > Account Settings > Account Actions > Add Mail Account.Here's how to configure Thunderbird to provide IMAP account access to O365 using OAuth2 ("Modern Authentication" in Microsoft parlance). It is important for your Local Support Provider (LSP) to review the issues below and judge whether a deployment makes sense for their unit.Īs of Thunderbird version 78.4.1, OAuth2 is supported.
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If you prefer using Thunderbird you can configure it with IMAP to access it via Penn Microsoft 0365. Therefore, it lacks the support of Microsoft 0365 Exchange. Thunderbird is an email client by Mozilla.
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