A spiking queue indicates throttling, temporary rejection by ISPs, or network congestion. 2. Delivery Rates (Success vs. Bounce) What it is: The ratio of successful deliveries to bounces.
PowerMTA generates massive log files. Ensure your monitoring doesn't break when logs rotate. powermta monitoring
Visualize queue spikes, error rates, and volume fluctuations over days, weeks, or months. A spiking queue indicates throttling, temporary rejection by
Set up rule-based notifications to ping your team if delivery rates dip below a set threshold. 2. The ELK Stack (Elasticsearch, Logstash, Kibana) Bounce) What it is: The ratio of successful
| Command | Description | |---|---| | pmta show queue | Displays the global email queue. | | pmta show topdomains | Lists domains with the most emails in the queue and errors. | | pmta --dom show status | Shows detailed queue status per domain (requires the --dom flag). | | pmta show topqueues --errors | Highlights the most problematic queues. | | pmtad --debug | A powerful debugging tool if PowerMTA fails to start. |