The include directive is the fundamental linking mechanism. It instructs PowerMTA to read and parse the contents of another file exactly as if those directives were written at the point of inclusion.
PowerMTA is a popular, open-source email server software that provides high-performance and scalable email delivery. One of the key aspects of configuring PowerMTA is understanding its configuration file, often referred to as the config file. In this article, we'll take a deep dive into the PowerMTA config file, exploring its structure, parameters, and best practices.
The primary PowerMTA configuration file is located at /etc/pmta/config
/etc/pmta/license (Must be present for the service to start)