OAuth Code exchange returned 400

[HumanMus1c (Human)]

SORRY, ENCOUNTERING ISSUE WHILE LOGGIN YOUR ACCOUNT!

OAuth Code exchange returned 400 : {“error”:“invalid_request”,“error_description”:“AADSTS90023: Cross-origin token redemption is permitted only for the ‘Single-Page Application’ client-type or ‘Native’ client-type with origin registered in AllowedOriginForNativeAppCorsRequestInOAuthToken allow list. Trace ID: 8ff69365-a427-4344-a8c7-e23347e80d00 Correlation ID: 6bbb6fb3-badb-4889-b77d-2cf7760959ce Timestamp: 2026-01-16 17:46:01Z”,“error_codes”:[90023],“timestamp”:“2026-01-16 17:46:01Z”,“trace_id”:“8ff69365-a427-4344-a8c7-e23347e80d00”,“correlation_id”:“6bbb6fb3-badb-4889-b77d-2cf7760959ce”}

[minecreeper313]

Same problem here.
I presume it has to do with Microsoft’s 2FA authentication.
It’s always, always outlook giving these issues. I think part of the fault is also on Microsoft. I hope the Mailspring team can do something about it though.

[TheDestr0yer]

Same problem , any solutions ?

[jeanpaulbouzat (JBZ)]

Hello, same problem in linux Mint 22.3 mailspring 1.17.1 with Firefox or Brave

Have a good day.

[xb0n3z]

FIX!! Roll Back to 1.16.0! Didn’t think it would work, but it did!! Got my account back up after 30 failed attempts with 1.17.1

[daelv]

concurrent thread Outlook / Hotmail Will Not Authenticate after Version 1.17 Update

[Edned]

Fix has been implemented by @bengotow. Please see this thread for more info.

[bengotow]

Yep this should be fixed now! Sorry for the hassle everyone, and I appreciate the detailed reports for tracking this down.

[daelv]

was it a Microsoft thing? I am on Vers. 1. 16.0-5339a49f and it is now working!?!? The 1.17 recent ver. can receive mail but can’t sent?! from any account.

[HumanMus1c (Human)]

Still can not login.

[daelv]

Still Can not send mail still With Spectrum, it is received ok… weird… is it an OAUTH req’d problem? GMail and Hotmail can…