Powermta Configuration Guide Jun 2026

pmta check config # Validate syntax pmta reload # Graceful reload pmta restart # Full restart tail -f /var/log/pmta/pmta.log

Add user accounts to users.cf :

user1 password1 user2 password2

Add a TXT record in DNS (e.g., v=spf1 ip4:your_ip -all ).

pmta_domain example.com pmta_hostname mail.example.com pmta_admin_email admin@example.com powermta configuration guide

Better: restrict injection to localhost or a specific internal IP.

In this report, we provided a comprehensive guide to PowerMTA configuration. We covered basic configuration, advanced configuration, and testing and verification. PowerMTA is a powerful email server software that requires careful configuration to ensure optimal performance and security. By following this guide, you should be able to configure PowerMTA to meet your email server needs. pmta check config # Validate syntax pmta reload

<virtual-mta main> queue-type FIFO max-smtp-out 100 max-msg-rate 1000/m </virtual-mta>

max-smtp-out 500 smtp-port 25

Example config file snippet: