Q: Can I use PowerMTA with multiple IP addresses? A: Yes, PowerMTA supports multiple IP addresses. You can configure IP settings specific to individual IP addresses.
iptables -A INPUT -p tcp --dport 25 -j ACCEPT iptables -A INPUT -p tcp --dport 587 -j ACCEPT After configuring PowerMTA, it's essential to test your configuration to ensure it's working as expected. You can use tools like telnet and openssl to test email delivery and TLS connectivity.
relay example.com { relay_host = smtp.example.net; relay_port = 587; } PowerMTA supports various authentication methods, including SASL, TLS, and authentication using external scripts. Here's an example of configuring SASL authentication:
