I've been using 4PSA's Spam Guardian product for just over a year now and I've been considering swithing to the Plesk version. I would love any opinions/experience as to which product may work better. I realize that both products use the same basic engine, but I'm not sure if there could be any differences that could cause one to "out-perform" the other. I can't say that I've been completely thrilled with the performance of the 4PSA product. I thought the idea is that over time it will "catch" and filter more and more spam so less will get through. This doesn't really appear to be happening. I currently have approx. 123,000 messages used for spam training. My server processes on average 2700 emails a day and drops about 531 as spam. My personal email account brings in about 130 to 150 spam messages a day and 4PSA's Spam Guardian catches maybe 30 to 40 of them. Is this as good as it gets after a full years worth of training? Any advice would be greatly appreciated.