This is a remedial question, but I need to get a bench mark as to how much data is moving through our exchange server, and how much data can possible run trhough our exchange server. We are running exchange server 2000 on windows server 2000. both are sp3. There are a ton of exchange options available in perfmon, and searching through technet for teh last half hour has not enlightened me as to which are the counters I want to monitor.