A new resource for spotlighting organizations that are unwittingly contributing to the global spam problem aims to shame junk email havens into taking more aggressive security measures. SpamRankings.net is a project launched by the Center for Research in Electronic Commerce at the University of Texas at Austin. The group initially is focusing on health care providers that appear to be infected with spam bots. Future versions of the project will focus on organizations in other industry verticals, such as banking and Web hosting. The data come from the Composite Block List, which tracks Internet addresses that have been seen sending spam.”]
Source: https://krebsonsecurity.com/2011/06/naming-shaming-sources-of-spam/