Better — Powermta Monitoring

Optimizing Email Infrastructure: A Comprehensive Guide to PowerMTA Monitoring 1. Introduction

What to track: vmta queue sizes, active connections per domain, deferred queue growth rate.

Better approach: Use pmta show queue every 5 seconds, but feed that into a time-series database. A growing hold queue over 10 minutes is a crisis; a growing virtual queue over 2 hours is a configuration error.

Alert trigger: If the active queue grows beyond max-smtp-out for a specific domain for more than 15 minutes, investigate throttling or DNS issues.

Monitor for sudden spikes in outbound volume that could indicate compromise.

Keep file descriptor and ephemeral port usage under watch; exhausted sockets cause silent failures.

Audit Logs:

Track who is issuing pmta commands (like clearing queues) to prevent accidental data loss. powermta monitoring better

Optimizing Email Infrastructure: A Comprehensive Guide to PowerMTA Monitoring 1. Introduction

What to track: vmta queue sizes, active connections per domain, deferred queue growth rate.
Better approach: Use pmta show queue every 5 seconds, but feed that into a time-series database. A growing hold queue over 10 minutes is a crisis; a growing virtual queue over 2 hours is a configuration error.
Alert trigger: If the active queue grows beyond max-smtp-out for a specific domain for more than 15 minutes, investigate throttling or DNS issues.

Monitor for sudden spikes in outbound volume that could indicate compromise.
Keep file descriptor and ephemeral port usage under watch; exhausted sockets cause silent failures.

Audit Logs:

Track who is issuing pmta commands (like clearing queues) to prevent accidental data loss.