I'm reviving a very old thread here, but there are very few Postfix mail queue threads.
I am runing Hyperic vFabric 5.0 and I have a Postfix plugin 5.0 in my environment. We have a few Linux mail servers (Oracle Ent. Linux, based on Red Hat) which run Postfix and we want to monitor the mail queues. Running the agent as root on these systems, the Postfix server gets auto-discovered. This allows me to see the basic metric indicator charts. In the Inventory tab for the Postfix server, I double checked all the config fields and they are correct, so I assumed that the checkbox for "Auto-Discover Queues" would do just that and I would have metric indicators for queue length. I don't see that, and in INFO mode I don't see any Postfix plugin errors in the agent.log file. I'll try DEBUG mode on the agent next, but I was wondering if anyone out there has this working. Or, are my expectations out of line?