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OAuth and Sending Emails Fail for Outlook or Gmail with server timeout

  • 2 replies
  • 1 has this problem
  • 2 views
  • Last reply by Toad-Hall

KD9LWR
KD9LWR
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When I set up an account (Outlook or Gmail) to use OAuth, sending emails fails. When I click 'send,' a large window flashes up, but then nothing happens until I receive a server time-out error.

When using OAuth for retrieving emails, no errors occur.

If I switch to an app password, then it works fine.

  • Using Thunderbird version 115.2.2.
When I set up an account (Outlook or Gmail) to use OAuth, sending emails fails. When I click 'send,' a large window flashes up, but then nothing happens until I receive a server time-out error. When using OAuth for retrieving emails, no errors occur. If I switch to an app password, then it works fine. * Using Thunderbird version 115.2.2.

Modified by Wayne Mery

All Replies (2)

christ1
christ1
  • Top 25 Contributor
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Please post your Troubleshooting Information. At the top right of the Thunderbird window, click the menu button ≡, then select Help > More Troubleshooting Information. Press the "Copy text to clipboard button" and paste the information into your reply.

Toad-Hall
Toad-Hall
  • Top 10 Contributor
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You did not repond to the requested info so I'm not sure what server name you were using.

TRy using Authentication Method: OAuth2 and change the SMTP server name from the default smtp.office365.com to smtp.outlook.office365.com

Please note you will need to access webmail and switch off the 2FA and use normal password not app generated password.