Windows 10 bereikte EO (einde ondersteuning) op 14 oktober 2025. Als je Windows 10 gebruikt, lees dan dit artikel.

Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

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Oauth2 authentication method missing from TB v115 SMTP server outgoing

Thunderbird Anders
Brent beantwoord
Brent
Brent

Trying get TB 115 to work with Outlook.com email account and OAuth2.

  • Outbound email will not work. SMTP Server authentication method does not show the drop down option for oauth2 (see attached screen shot).
  • I am using the server names, ports, etc from MS. No issues until forced changed to oauth2.
  • Inbound email is working (IMAP) with ouath2 and MS set to 2FID.
  • Gmail works fine through TB.

Thank you for your help.

Trying get TB 115 to work with Outlook.com email account and OAuth2. * Outbound email will not work. SMTP Server authentication method does not show the drop down option for oauth2 (see attached screen shot). * I am using the server names, ports, etc from MS. No issues until forced changed to oauth2. * Inbound email is working (IMAP) with ouath2 and MS set to 2FID. * Gmail works fine through TB. Thank you for your help.
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Alle antwoorden (2)

sfhowes
sfhowes

Gekozen oplossing

Use outlook.office365.com for the incoming and smtp.office365.com for the outgoing:

https://support.mozilla.org/en-US/questions/1417298#answer-1588949

Brent
Brent Vraageigenaar

Thank you sfhowes. I tried those addresses before, but this time I rebooted. Outbound works fine now.