sudo rpm -ivh powermta-6.0r3.rpm

Remember that while 6.0r3 is robust, it lacks some modern features (like HTTP API injection and 7-bit SMTPUTF8 support) found in version 7+. However, for raw throughput and stability, especially on older kernels, 6.0r3 remains a battle-tested workhorse.

id = 'node1', ip = '127.0.0.1', port = 7777, , ,