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Sets a high number of parallel connections allowed to a single destination domain (e.g., yahoo.com).
Here's a working template with "hot" settings ready for tuning:
. Configuring PowerMTA effectively involves defining Virtual MTAs (VMTAs), setting domain-specific throttling rules, and ensuring proper authentication to maintain a high sender reputation. Core PowerMTA Configuration Components The primary configuration file is typically located at /etc/pmta/config sample powermta configuration file hot
# Multi-VMTA hot configuration example virtual-mta pmta-newsletter-pool smtp-source-host 192.168.1.10 newsletter1.example.com smtp-source-host 192.168.1.11 newsletter2.example.com max-smtp-msg-rate 10000/h
Below is a breakdown of a production-ready config file, followed by an explanation of the critical directives. Sample PowerMTA "Hot" Configuration File Sets a high number of parallel connections allowed
This config assumes you have already established a good IP reputation.
source-ip 192.168.1.101 default-virtual-mta "vmta-pool-1" smtp-name mail1.yourdomain.com A vMTA is a fully independent, logically separate
Perhaps the most important "hot" configuration concept is the . A vMTA is a fully independent, logically separate MTA within your single PowerMTA instance. Each vMTA can have its own:
# Listens on all available IPs on port 25 smtp-listener 0/0:25 # Optional: Listens on port 587 for authenticated users smtp-listener 0/0:587 Use code with caution. Copied to clipboard 3. Virtual MTAs (VMTAs) and IP Pooling
<source 192.168.1.100> smtp-service yes always-allow-relaying yes process-x-virtual-mta yes hide-message-source true </source>
