Kolab 2.3.4 - shared calendars not accessible

[Dirk Werner]

Hi,

on a kolab 2.3.4 openpkg version, I cannot get access to calendars via
horde - on the calendar site, on the right menu - the only entry shown,
is a calendar of [anonymous] > Calendar, no existing other shared
calendars are displayed at all. I login using uid(same as the primary
email address) and pwd. The login works fine, mail access is without
problems.
When selecting the calendar menu entry in horde, the log files show the
following lines. Those make me think that authentication is not working
proper, at least when accessing via horde:

Last lines of /kolab/var/apache/log/apache-error.log:

[Mon Aug 06 22:05:51 2012] [error] [client 78.34.133.163] PHP Notice: 
Unknown: SECURITY PROBLEM: insecure server advertised AUTH=PLAIN
(errflg=1) in Unknown on line 0, referer:
https://xmail.airwerk.net/client/dimp/
[Mon Aug 06 22:05:51 2012] [error] [client 78.34.133.163] PHP Notice: 
Unknown: SECURITY PROBLEM: insecure server advertised AUTH=PLAIN
(errflg=1) in Unknown on line 0, referer:
https://xmail.airwerk.net/client/kronolith/
[Mon Aug 06 22:06:01 2012] [error] [client 78.34.133.163] PHP Notice: 
Unknown: SECURITY PROBLEM: insecure server advertised AUTH=PLAIN
(errflg=1) in Unknown on line 0, referer:
https://xmail.airwerk.net/client/kronolith/
[Mon Aug 06 22:06:01 2012] [error] [client 78.34.133.163] PHP Notice: 
Unknown: SECURITY PROBLEM: insecure server advertised AUTH=PLAIN
(errflg=1) in Unknown on line 0, referer:
https://xmail.airwerk.net/client/kronolith/calendars/
[Mon Aug 06 22:06:05 2012] [error] [client 78.34.133.163] PHP Notice: 
Unknown: SECURITY PROBLEM: insecure server advertised AUTH=PLAIN
(errflg=1) in Unknown on line 0, referer:
https://xmail.airwerk.net/client/dimp/
[Mon Aug 06 22:06:05 2012] [error] [client 78.34.133.163] PHP Notice: 
Unknown: SECURITY PROBLEM: insecure server advertised AUTH=PLAIN
(errflg=1) in Unknown on line 0, referer:
https://xmail.airwerk.net/client/kronolith/
[Mon Aug 06 22:06:16 2012] [error] [client 78.34.133.163] PHP Notice: 
Unknown: SECURITY PROBLEM: insecure server advertised AUTH=PLAIN
(errflg=1) in Unknown on line 0, referer:
https://xmail.airwerk.net/client/kronolith/
[Mon Aug 06 22:06:16 2012] [error] [client 78.34.133.163] PHP Notice: 
Unknown: Invalid mailbox name (errflg=2) in Unknown on line 0, referer:
https://xmail.airwerk.net/client/kronolith/
[Mon Aug 06 22:06:23 2012] [error] [client 78.34.133.163] PHP Notice: 
Unknown: SECURITY PROBLEM: insecure server advertised AUTH=PLAIN
(errflg=1) in Unknown on line 0, referer:
https://xmail.airwerk.net/client/kronolith/
[Mon Aug 06 22:06:25 2012] [error] [client 78.34.133.163] PHP Notice: 
Unknown: SECURITY PROBLEM: insecure server advertised AUTH=PLAIN
(errflg=1) in Unknown on line 0, referer:
https://xmail.airwerk.net/client/kronolith/
[Mon Aug 06 22:06:29 2012] [error] [client 78.34.133.163] PHP Notice: 
Unknown: SECURITY PROBLEM: insecure server advertised AUTH=PLAIN
(errflg=1) in Unknown on line 0, referer:
https://xmail.airwerk.net/client/kronolith/
[Mon Aug 06 22:06:30 2012] [error] [client 78.34.133.163] PHP Notice: 
Unknown: SECURITY PROBLEM: insecure server advertised AUTH=PLAIN
(errflg=1) in Unknown on line 0, referer:
https://xmail.airwerk.net/client/dimp/
[Mon Aug 06 22:06:31 2012] [error] [client 78.34.133.163] PHP Notice: 
Unknown: SECURITY PROBLEM: insecure server advertised AUTH=PLAIN
(errflg=1) in Unknown on line 0, referer:
https://xmail.airwerk.net/client/kronolith/


Last lines of /kolab/var/kolab/webclient_data/log/horde.log:

Aug 06 21:27:55 HORDE [error] [nag] IMAP error. Server:
xmail.airwerk.net. Error: IMAP Authentication cancelled [pid 2755 on
line 295 of "/kolab/var/kolab/www/client/nag/lib/Nag.php"]
Aug 06 21:28:20 HORDE [error] [imp] FAILED LOGIN for mustafa.suenbuel
[78.180.227.87] to {xmail.airwerk.net:143 [imap/notls/novalidate-cert]}
[pid 4167 on line 139 of "/kolab/var/kolab/www/client/imp/lib/Auth/imp.php"]
Aug 06 21:28:20 HORDE [error] [kronolith] IMAP error. Server:
xmail.airwerk.net. Error: IMAP Authentication cancelled [pid 4167 on
line 1348 of "/kolab/var/kolab/www/client/kronolith/lib/Kronolith.php"]
Aug 06 21:28:20 HORDE [error] [nag] IMAP error. Server:
xmail.airwerk.net. Error: IMAP Authentication cancelled [pid 4167 on
line 295 of "/kolab/var/kolab/www/client/nag/lib/Nag.php"]
Aug 06 21:28:20 HORDE [error] [nag] IMAP error. Server:
xmail.airwerk.net. Error: IMAP Authentication cancelled [pid 4167 on
line 295 of "/kolab/var/kolab/www/client/nag/lib/Nag.php"]
Aug 06 21:28:40 HORDE [error] [turba] IMAP error. Folder:
INBOX/Contacts. Error: Invalid mailbox name [pid 4227 on line 452 of
"/kolab/var/kolab/www/client/turba/lib/Turba.php"]
Aug 06 21:28:41 HORDE [error] [turba] IMAP error. Folder:
INBOX/Contacts. Error: Invalid mailbox name [pid 4166 on line 452 of
"/kolab/var/kolab/www/client/turba/lib/Turba.php"]
Aug 06 21:34:16 HORDE [error] [kronolith] IMAP error. Server:
xmail.airwerk.net. Error: IMAP Authentication cancelled [pid 5744 on
line 1348 of "/kolab/var/kolab/www/client/kronolith/lib/Kronolith.php"]
Aug 06 21:34:16 HORDE [error] [nag] IMAP error. Server:
xmail.airwerk.net. Error: IMAP Authentication cancelled [pid 5744 on
line 295 of "/kolab/var/kolab/www/client/nag/lib/Nag.php"]
Aug 06 21:34:16 HORDE [error] [nag] IMAP error. Server:
xmail.airwerk.net. Error: IMAP Authentication cancelled [pid 5744 on
line 295 of "/kolab/var/kolab/www/client/nag/lib/Nag.php"]
Aug 06 21:34:23 HORDE [error] [turba] IMAP error. Folder:
INBOX/Contacts. Error: Invalid mailbox name [pid 5744 on line 452 of
"/kolab/var/kolab/www/client/turba/lib/Turba.php"]
Aug 06 22:06:16 HORDE [error] [turba] IMAP error. Folder:
INBOX/Contacts. Error: Invalid mailbox name [pid 5735 on line 452 of
"/kolab/var/kolab/www/client/turba/lib/Turba.php"]

File /kolab/var/apache/log/php/php-errors.log is empty, despite the
setting log_errors = on in php.ini.

When trying to subscribe to existing shared folders, using KMail or
Thunderbird, the subscription is not happening, no error message is
thrown. Using Outlook 2007 for this throws 'Subscribe: Mailbox does not
exist'.

I'm stuck with this, the users aren't able to share calendars and
addressbooks, any hint is very much appreciated,
Dirk