OAuth2 failed on imap ( it stopped working after 1 day)

Hi
we are using znuny 7.1.3

Have the following issue using oauth2 for imap on a gmail account:

- On znuny we created OAuth2 configuration using Google Mail template and configured the related Postmaster Mail account for IMAP
- We successfully created first request (from znuny gui: Admin -> OAuth2 click on refresh and a pop for user Authentication request appears)
Znuny correctly accesses the email
- When the token expires, a new is requested: we see the updated validation time in the GUI. We also checked the token with https://www.googleapis.com/oauth2/v1/to ... _token=xxx it results valid
- After one day it stopped working; the email fetch from cli gives the following error:

imap.gmail.com (IMAPS)...
Started at Wed Apr 16 17:37:42 2025
Using Mail::IMAPClient version 3.43 on perl 5.036000
Connecting with IO::Socket::SSL PeerAddr imap.gmail.com PeerPort 993 Proto tcp Timeout 600 Debug 1 SSL_verify_mode 0
Connected to imap.gmail.com
Read: * OK Gimap ready for requests from xxx.xxx.xxx.xxx j32mb33028445wms
Sending: 1 AUTHENTICATE XOAUTH2
Sent 24 bytes
Read: +
Sending: [Redact: Count=1 Showcredentials=OFF]
Sent 354 bytes
Read: + eyJzdGF0dXMiOiI0MDAiLCJzY2hlbWVzIjoiQmVhcmVyIiwic2NvcGUiOiJodHRwczovL21haWwuZ29vZ2xlLmNvbS8ifQ==
Sending: [Redact: Count=1 Showcredentials=OFF]
Sent 354 bytes
Read: 1 NO [AUTHENTICATIONFAILED] Invalid credentials (Failure)
ERROR: 1 NO [AUTHENTICATIONFAILED] Invalid credentials (Failure) at /usr/share/perl5/Mail/IMAPClient.pm line 3319.
Mail::IMAPClient::authenticate(Mail::IMAPClient=HASH(0x5595b762f300), "XOAUTH2", CODE(0x5595b762f198)) called at /srv/znuny-7.1.3/Kernel/System/MailAccount/IMAP.pm line 124

Could You please suggest how to perform further analysis or any ideas on what's happening?

Waiting for hearing from You

Alberto

Statistics: Posted by sirconsultant — 22 Apr 2025, 10:34 — Replies 0 — Views 117

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