Horde does not write logs into existing log file.
Incorrect permissions for
psa-horde log file were set, because of wrong logrotate configuration.
This is Plesk internal issue PPPM-1807 , which is not reproduced in Plesk 12.0.8.
Please consider upgrading to the latest Plesk version.
As an alternative, the following workaround can be applied:
Set permissions manually:
# chown horde_sysuser:horde_sysgroup /var/log/psa-horde/psa-horde.log
Modify the '
/usr/local/psa/etc/logrotate.d/psa-horde' file as follows:
create 640 horde_sysuser horde_sysgroup