I don't know what has happened in the last month, but there seems to be a worldwide explosion of SPAM. I have several email accounts across multiple ISP's and my daily SPAM tally has jumped from 3 or 4 a day to 160 a day across all my accounts.

After much Googling and trying out a bunch of open source & free anti-SPAM solutions I settled on the brilliant Spamihilator. What sets Spamihilator apart from the other solutions, most of which are wrappers around SpamAssassin, is the ability to delete SPAM before it hits your inbox, coupled with a large array of SPAM identification techniques including email address white/black lists, DNS Black lists, filtering based on number of recipients, Bayesian learning filter, bad word lists etc.

I have found after a week of training that Spamihilator is above 99% accuracy for SPAM filtering. I have only seen a couple of SPAMs in my inbox since I installed it plus there is a nice recycle bin in case you get any false positives.

Using the AnalogX Portmapper I was able to give access to Spamihilator (normally bound to localhost) to all the machines on my network.