For an internal, on-premise or Zimbra-hosted environment, the native Mail Police are exceptionally powerful—especially compared to generic POP/IMAP servers. However, they are reactive (learning from spam they already saw) rather than proactive.
The Chief of Police sits in the . This is where the rulebook is written. The Mail Police are configured via Global Settings, Class of Service (COS), and individual user overrides. zimbra mail police
Zimbra Sentinel: Predictive Threat Containment For an internal
By running zmmsgtrace via CLI, an admin can track: on-premise or Zimbra-hosted environment