NAME

       HashBL - seearch email addresses in HashBL blocklists

SYNOPSIS

         loadplugin Mail::SpamAssassin::Plugin::HashBL
         header   HASHBL_EMAIL       eval:check_hashbl_emails('ebl.msbl.org')
         describe HASHBL_EMAIL       Message contains email address found on EBL

DESCRIPTION

       The Email Blocklist (EBL) contains email addresses used to receive responses to spam
       emails.  These email addresses are sometimes called contact email addresses or drop boxes.
       The initial target of this blocklist was "Nigerian" 419 Advance Fee Fraud spam. As time
       passed and more types of spam that used drop boxes was identified, these drop boxes also
       were listed.  The EBL now lists significant numbers of drop boxes used in spam sent by
       Chinese manufacturers of high-tech and light industrial products, SEO/web development
       companies, direct spam services, list sellers, and a number of fraudulent or outright
       illegal products sold by botnets.