Ich habe mir gerade mal noch das var/log/kopano/monitor.log angesehen.
Dort bekomme ich folgende Fehlermeldungen:
Sun Feb 5 18:15:00 2017: [crit ] Unable to open an admin session. Error 0x80040115
Sun Feb 5 18:30:00 2017: [error ] M4LMsgServiceAdmin::ConfigureMsgService() MSGServiceEntry failed 80040115: network error
Sun Feb 5 18:30:00 2017: [crit ] CreateProfileTemp(): ConfigureMsgService failed 80040115: network error
Sun Feb 5 18:30:00 2017: [warning] CreateProfileTemp failed: 80040115: network error
Sun Feb 5 18:30:00 2017: [crit ] Unable to open an admin session. Error 0x80040115
Sun Feb 5 18:30:45 2017: [ notice] Starting kopano-monitor version 8,1,1,10 (10), pid 15439
Sun Feb 5 18:30:50 2017: [crit ] Unable to get userlist for company Default, error code 0x8004010F
Sun Feb 5 18:58:13 2017: [ notice] Starting kopano-monitor version 8,1,1,10 (10), pid 28958
Sun Feb 5 19:00:03 2017: [crit ] Unable to get userlist for company Default, error code 0x8004010F
Sun Feb 5 19:09:07 2017: [ notice] Starting kopano-monitor version 8,1,1,10 (10), pid 5945
Sun Feb 5 19:15:02 2017: [crit ] Unable to get userlist for company Default, error code 0x8004010F
Mon Feb 6 20:15:01 2017: [crit ] Previous message logged 100 times
Mon Feb 6 20:15:01 2017: [crit ] Unable to get userlist for company Default, error code 0x8004010F
Mon Feb 6 21:45:16 2017: Previous message logged 6 times
VIelleicht hilft das ja noch weiter.