One of the downsides of making my living in eCommerce is the amount of spam I get. Sometimes hundreds of unwanted messages per day. Many of them have been eluding my Outlook's spam filter lately, so I went on the prowl for a better tool. (Freeware of course. My German frugality strikes again.)
Spamihilator uses multiple detection techniques to catch spam before it hits your inbox, making it highly accurate from the very first. I highly recommend it.