Writing in regards to http://www.zimbra.com/pdf/Zimbra%20S...0Benchmark.pdf.
I am tasked to build that test harness for both Zimbra and one of the "BIG guys". The goal is to get first hands comparative benchmarking experience on performance and scalability so that the management could make up their mind as to which way to go. I could not find a hint as to where those 50000 active users are sending their messages: to themselves, to all 200000 provisioned mailboxes, or to the Internet (outside) receivers (or all of the above in a ratio (what is that ratio then?)? The answer is crucial for us to get the correct results in the comparison study, on the same hardware as Zimbra ran the described benchmark.
Thanks in advance for any pointers!!!