Package: offlineimap Version: 7.3.3+dfsg1-1 Severity: important Kerberos authentication appears to be broken. I believe this happened after my latest apt full-upgrade, though I think the only relevant package that changed was python-imaplib2. Debugging flag isn't giving me a lot to go on:
$ offlineimap -d ALL WARNING:root:Using old interface name, consider using one of quiet, ttyui, machineui, syslog, basic, blinkenlights OfflineIMAP 7.3.3 Licensed under the GNU GPL v2 or any later version (with an OpenSSL exception) INFO:OfflineImap:OfflineIMAP 7.3.3 Licensed under the GNU GPL v2 or any later version (with an OpenSSL exception) imaplib2 v2.57 (system), Python v2.7.18, OpenSSL 1.1.1g 21 Apr 2020 INFO:OfflineImap:imaplib2 v2.57 (system), Python v2.7.18, OpenSSL 1.1.1g 21 Apr 2020 Now debugging for imap: IMAP protocol debugging DEBUG:OfflineImap:Now debugging for imap: IMAP protocol debugging Now debugging for maildir: Maildir repository debugging DEBUG:OfflineImap:Now debugging for maildir: Maildir repository debugging Now debugging for thread: Threading debugging DEBUG:OfflineImap:Now debugging for thread: Threading debugging Now debugging for : Other offlineimap related sync messages DEBUG:OfflineImap:Now debugging for : Other offlineimap related sync messages Account sync kuroneko: [thread]: Register new thread 'Account sync kuroneko' (account 'kuroneko') DEBUG:OfflineImap:[thread]: Register new thread 'Account sync kuroneko' (account 'kuroneko') [imap]: Using authentication mechanisms ['GSSAPI', 'XOAUTH2', 'CRAM-MD5', 'PLAIN', 'LOGIN'] DEBUG:OfflineImap:[imap]: Using authentication mechanisms ['GSSAPI', 'XOAUTH2', 'CRAM-MD5', 'PLAIN', 'LOGIN'] [maildir]: MaildirRepository initialized, sep is '.' DEBUG:OfflineImap:[maildir]: MaildirRepository initialized, sep is '.' *** Processing account kuroneko INFO:OfflineImap:*** Processing account kuroneko Establishing connection to forge.kuroneko.ca:993 (forge) INFO:OfflineImap:Establishing connection to forge.kuroneko.ca:993 (forge) [imap]: forge: level 'tls_compat', version 'None' DEBUG:OfflineImap:[imap]: forge: level 'tls_compat', version 'None' [imap]: Attempting GSSAPI authentication DEBUG:OfflineImap:[imap]: Attempting GSSAPI authentication [imap]: Attempting PLAIN authentication DEBUG:OfflineImap:[imap]: Attempting PLAIN authentication Enter password for user 'eric': Let me know if I can do something else to get info. -- System Information: Debian Release: bullseye/sid APT prefers unstable APT policy: (500, 'unstable'), (1, 'experimental') Architecture: amd64 (x86_64) Kernel: Linux 4.19.0-5-amd64 (SMP w/2 CPU threads) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages offlineimap depends on: ii python-imaplib2 2.57-5.1 ii python-six 1.15.0-1 ii python2 2.7.18-2 Versions of packages offlineimap recommends: ii python-socks 1.6.8+dfsg-1.1 Versions of packages offlineimap suggests: pn python-gssapi <none> -- no debconf information