To see the effective configuration after all links are resolved:
pmta show config # Dumps parsed config
pmta show config | grep "max-message-size" # Check specific directive
pmta check config # Validate syntax across all linked files
If an included file has an error, pmta reload will fail and log the specific file path and line number in /var/log/pmta/httpd-access.log or syslog.
<virtual-mta vmta-fast> <domain *> max-smtp-out 20 throttle * 10000/s </domain> </virtual-mta>
<source 127.0.0.1> process-x-forwarded-for yes </source>
To master PowerMTA, adopt these four golden rules regarding configuration links: powermta config file link
The PowerMTA config file is a powerful tool that allows you to fine-tune your email server's behavior. By understanding the different sections and parameters, you can optimize your PowerMTA instance for high-performance and scalable email delivery. Remember to follow best practices and regularly review your config file to ensure it's aligned with your email infrastructure needs.
Resources
By mastering the PowerMTA config file, you'll be well on your way to creating a robust and efficient email infrastructure that meets the needs of your organization.
I couldn’t find a direct, official link to a PowerMTA configuration file in your message — but if you’re looking for the main PowerMTA config file location or a reference/sample config, here’s what you need: To see the effective configuration after all links
After making changes to the PowerMTA configuration file, you typically need to reload the configuration or restart the PowerMTA service for the changes to take effect. This can usually be done with a command like:
sudo service powermta reload
or
sudo systemctl reload powermta
The exact command can vary depending on the system you're using.
Since the official PDFs are gated, the community relies on a few reliable mirrors and third-party breakdowns. The best public repository for understanding the config file structure is actually the PowerMTA User Guide (legacy versions) available via academic and open-source mirrors. If an included file has an error, pmta
Note: Always verify directives against your specific major version (v4.x vs v5.x), as syntax changes.
The most common public resource link for the config spec is:
*(Due to the dynamic nature of documentation sites, a direct link often breaks. Instead, search for: *"PowerMTA 4.5 Configuration Reference PDF")