Good afternoon all, I am considering setting up a nolisting postfix server on a spare static IP so as to study the effects of nolisting for some heavy domains we host (3k total msgs/day, 200 legit). This server will sit at both the highest priority and the lowest priority, with the real MX in the middle.
The nolisting spec says that nothing should answer on port 25 but I would like it to answer and respond with a "not available" error, so that I could compare connections between the nolisting MX and the actual MX. What would be the most effective configuration to accomplish this task? Thank you in advance, Isaac Grover
