The final chapter of Dieter P. Bieny’s war on spam is now available at Amazon ($20 paperback, $4.99 for the Kindle version):

https://www.amazon.com/End-Spamming-Spammers-Dieter-Bieny/dp/1365104842/ref=sr_1_2?s=books&ie=UTF8&qid=1485539323&sr=1-2&keywords=dabbene+spamming