domain yourdomain.com selector default private-key-file /etc/pmta/dkim/private.key Use code with caution. Best Practices for Management Smart Email Verifier PowerMTA: Guide to High-Deliverability Email in 2025
Share a common "base" configuration across multiple PowerMTA servers while linking to a unique local file for server-specific IPs. Wildcards: powermta config file link
When you finally open the correct config file, here is what the "linked" structure looks like: domain yourdomain