Link | Powermta Config File

Keep separate files for VMTAs, SMTP users, or domain-specific settings (e.g., include /etc/pmta/vmtas.txt Consistency:

<source 127.0.0.1> process-x-forwarded-for yes </source>

# General daemon settings run-as-user pmta The-id your-unique-pmta-id # Log paths log-file /var/log/pmta/log accounting-file /var/log/pmta/acct.csv Use code with caution. 2. IP Aliases and Listeners powermta config file link

: Verify that log-file paths exist and have adequate storage allocation for high-volume write cycles.

If PowerMTA fails to start, check if another mail service (like Postfix or Exim) is blocking port 25: netstat -tulpn | grep :25 Use code with caution. Keep separate files for VMTAs, SMTP users, or

#--- PowerMTA Configuration File ---# # 1. Basic Server Settings http-mgmt-port 8080 http-mgmt-password yourSecurePassword123! log-file /var/log/pmta/pmta.log acct-file /var/log/pmta/acct.csv # 2. SMTP Listening Settings (Inbound) smtp-listener 0.0.0.0:25 # 3. Virtual MTAs (Outgoing IPs) smtp-source-ip 192.0.2.1 hostname ://example.com smtp-source-ip 192.0.2.2 hostname ://example.com # 4. Virtual MTA Pools (Grouping) virtual-mta vmta1 virtual-mta vmta2 # 5. Domain Specific Settings (Deliverability) max-smtp-out 20 retry-after 5m dkim-sign true dkim-key-selector selector1 dkim-key-file /etc/pmta/dkim/selector1.pem # 6. Security & Authentication smtp-server-tls-certificate /etc/pmta/tls/server.crt smtp-server-tls-private-key /etc/pmta/tls/server.key smtp-server-tls-enable true # 7. Allowed Sources (Who can send through this PMTA?) password your_smtp_password Use code with caution. Key Configuration Directives Explained 1. Virtual MTAs ( )

This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. If PowerMTA fails to start, check if another

Keep authentication details separate from delivery schedules. Anatomy of a Robust PowerMTA Configuration

max-msg-rate 2/M enable-starttls yes ``` Use code with caution. Copied to clipboard 💡 Pro Tips for Configuration

pmta show vmta gmail-vip

always-allow-relaying yes process-x-envid yes process-x-job yes always-allow-relaying yes smtp-user-auth yes Use code with caution. Domain-Specific Optimization Rules