HoneySpam: Honeypots ghting spam at the source

In this paper, we present the design and implementa-tion of HoneySpam, a fully operating framework that is based on honeypot technologies and is able to address the most common malicious spammer activities. The idea is to ght spamming at the sources rather than at the receivers, as it is done by the large majority of propos-als and products. The present features of HoneySpam include slowdown of the e-mail harvesting process, poi-soning of e-mail databases through apparently working addresses, increased spammer traceability through the deployment of fake open proxies and open relays.