Sample Powermta Configuration File Hot Jun 2026

Limiting concurrent connections and messages per hour to prevent blocks.

domain gmail.com max-smtp-msg-rate 100/h max-msg-rate 50/s max-connections 20

address bounce-handler@example.com reject-non-retryable false max-bounces-per-hour 100 sample powermta configuration file hot

Below is a fully annotated sample configuration file, structured for clarity and maintainability. It covers the essential pillars of any high-volume email program: IP management, sending throttles, deliverability features (DKIM), and security.

These define basic identity, file paths, and administrative access. Limiting concurrent connections and messages per hour to

adaptive-throttling yes min-backoff 30s max-backoff 24h backoff-scale-factor 1.5

Sample PowerMTA Configuration File: Optimized for Hot IPs and High-Volume Delivery deliverability features (DKIM)

<domain *> max-smtp-out 20 use-starttls yes require-starttls no max-msg-rate 100/hour # Fallback for all domains </domain>

domain throt-aol.com domain aol.com max-smtp-out 20 max-per-host-out 20

# Global settings server_name = "example.com" server_domain = "example.com"