[Users] claws-mail with OAuth2 IMAP O365

[Philippe Cara (TB)]

Thank you Olaf!

I get exactly the error message you describe. Here's a screenshot: 
https://imgur.com/a/Oezix3P
So the link give by claws does work and I get an authentication page 
from office365. After authentication it goes wrong because of 
http://127.0.0.1:8888 as redirect URL.

I will try to modify the source as suggested and compile my own claws.

Is there any chance that this tweak would be included in a next release 
of claws-mail? I think it might be useful for lots of users who are 
forced to OAuth2 by their institution.

Best regards,					--Philippe

On 11/01/2024 17:00, Olaf Hering wrote:
> 
> Gmail works by following the wiki instructions.
> 
> O365 needs assistance from IT administrators, which need to allow http://127.0.0.1:8888 as redirect URL. It is possible to use the Thunderbird client_id in the OAuth2 settings window. But this alone will not help because O365 may allow only https://localhost as redirect URL. As a consequence you must tweak claws.git/src/oauth2.c and adjust the listening port from "8888" to "443", and adjust the redirect_url to "https://localhost".
> 
> Good luck.
> 
> Olaf