The primary configuration file for PowerMTA is typically located at /etc/pmta/config on Linux systems. You can find various templates and samples online to help set up your environment.
Here is an example of a basic PowerMTA config file: powermta config file link
: Always include paths for your DKIM keys using domain-key to ensure messages are properly signed before delivery. Produce a complete ready-to-deploy config for N domains
To allow your application (like Mumara, Mailwizz, or Interspire) to send mail through PMTA, you need to open a port. How to Access the PowermTA Config File Authentication