Powermta Config File Link -

# Relay Settings relay_host = smtp.example.net relay_port = 25 relay_auth = yes relay_username = username relay_password = password

: Within the tag, use the smtp-source-ip directive to bind a specific public IP address. 3. Critical Authentication Directives powermta config file link

smtp-listener 0.0.0.0:2525 # Listen on all IPs at port 2525 always-allow-relaying yes process-x-virtual-mta yes Use code with caution. 4. Domain Throttling (The Secret to Inbox Placement) # Relay Settings relay_host = smtp