Hi,

> Am 04.10.2023 um 12:56 schrieb Arjen de Korte <build+dove...@de-korte.org>:
> 
> Citeren Christian Rößner via dovecot <dovecot@dovecot.org>:
> 
>> Hi,
>> 
>> I use Roundcube with OIDC. Everything works fine in Dovecot 2.3.20, but 
>> broke in 2.3.21. Downgrading to 2.3.20 makes it work again, so it is 
>> introduced in the newer release.
>> 
>> Error (2.3.21):
>> ```
>> Oct  4 11:03:57 mx dovecot[558531]: imap-login: Disconnected: Connection 
>> closed (client didn't finish SASL auth, waited 1 secs): 
>> user=<christian@roessner.email>, orig_user=<christian@roessner.email>, 
>> method=XOAUTH2, rip=192.168.0.4, lip=192.168.0.2, TLS, TLSv1.3 with cipher 
>> TLS_AES_256_GCM_SHA384 (256/256 bits)
>> ```
>> 
>> Here is an example with 2.3.20:
>> 
>> Success (2.3.20):
>> ```
>> Oct  4 11:17:21 mx dovecot[889914]: imap-login: Login: 
>> user=<christian@roessner.email>, orig_user=<christian@roessner.email>, 
>> method=XOAUTH2, rip=192.168.0.4, lip=192.168.0.2, mpid=891874, TLS, TLSv1.3 
>> with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)
>> ```
> 
> Searching the archives might give a lead to what's going on (and a possible 
> workaround):
> 
> https://dovecot.org/mailman3/archives/list/dovecot@dovecot.org/thread/RR2GXLOAS6U3MZCQCA4T4S6QXCRV5GST

I get a different error from RC:

```
Oct 04 12:08:48 node1 8868c38d7990[158494]: errors: <48ea0f68> IMAP Error: 
Login failed for christian@roessner.email against mail.roessner-net.de from 
192.168.32.1 (X-Real-IP: 2003:a:a05:a600:858:7851:547f:8aed,X-Forwarded-For: 
2003:a:a05:a600:858:7851:547f:8aed). AUTHENTICATE XOAUTH2: A0001 NO 
[AUTHENTICATIONFAILED] Authentication failed. in 
/var/www/html/program/lib/Roundcube/rcube_imap.php on line 211 (GET 
/index.php/login/oauth?code=ory_ac_L5_NrO7EjgIccmV-_Tq1Y1_vls6i9NS8lbO7mHYwVeQ.maAkpsqdG95hkLutiDi4aB2KDPvj_pQ65qD-tuY9zBI&scope=openid+offline_access+profile+email+dovecot&state=J3WpRsBcOrnw)
```

And changing the introspection_url parameter did not change anything.

Thanks in advance

Christian Rößner
-- 
Rößner-Network-Solutions
Zertifizierter ITSiBe / CISO
Karl-Bröger-Str. 10, 36304 Alsfeld
Fax: +49 6631 78823409, Mobil: +49 171 9905345
USt-IdNr.: DE225643613, https://roessner.website
PGP fingerprint: 658D 1342 B762 F484 2DDF 1E88 38A5 4346 D727 94E5 



Christian Rößner
-- 
Rößner-Network-Solutions
Zertifizierter ITSiBe / CISO
Karl-Bröger-Str. 10, 36304 Alsfeld
Fax: +49 6631 78823409, Mobil: +49 171 9905345
USt-IdNr.: DE225643613, https://roessner.website
PGP fingerprint: 658D 1342 B762 F484 2DDF 1E88 38A5 4346 D727 94E5 

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