More and more spam - and maybe stress too - well, I still think the approach outlined in the Plan for Spam is the best way to fight spam. I've been running an installation of bmf for a while now, which I actively train, and both the false positives (genuine mail marked as spam) and false negatives (spam that gets through) are minimal. Combined with a simple whitelisting technique and three inboxes (one for guaranteed non-spam, one for possible spam, and one for guaranteed spam), processing my mailbox is quick enough. And I currently get around 70-80 advertising emails a day...
Found at Telepolis News.