Once upon a time, many versions ago, this was a good program. Unfortunately the company does not offer adequate support to its registered users, many features do not work as advertised, the upgrade price is ridiculous, and other programs deal much better with spam. For example, for filtering or for previewing email, I prefer POPmonitor or Mail Toolbox. For automatically gathering spam in a folder you can't beat SpamSieve (98.4% accurate for me). For reporting spam I used SpamCop (the reporting script) and Apple's Mail. In terms of actually seeing a decrease in spam, Sp@mX is my choice for reporting. In summary, Spamfire has been a great disappointment.