Warning
Cluebringer has been removed from iRedMail since iRedMail-0.9.3, if you're still running Cluebringer, please follow our tutorial to migrate to iRedAPD: Migrate from Cluebringer to iRedAPD.
To turn on debug mode in Cluebringer, please increase its log level in Cluebringer config file, set what it should log, and restart Cluebringer service.
/etc/policyd/cluebringer.conf
./etc/cluebringer/cluebringer.conf
./usr/local/etc/cluebringer.conf
.log_level=4
log_detail=modules,tracking,policies
Cluebringer is configured to log to /var/log/cbpolicyd.log
by default, so
please monitor this file to check detailed debug log.