Wizblog

Who Are the Spammers?

Spamhaus names names, and the top two spammers in the world are Russians, with an American ranking third. The spam problem is made worse by ISP's who can't or won't clean up their servers. Again, Spamhaus names the worst offenders:

Much of the problem from spam stems from ineffective enforcement action by ISPs. A small number of large ISPs go even further by knowingly selling services to professional spammers, or doing nothing to prevent spammers operating from their networks through either corporate greed or mismanagement.

Although all networks claim to be anti-spam, some can't resist the lure of selling services at a premium to spam operations. Others simply decide that purging botnet-infected machines from their network is too costly. Spamhaus names and shames the networks it reports as having the world's worst spam problems. Worst of the lot is verizonbusiness with serverflo.com and sbc.com picking up the second and three places, respectively, in Spamhaus' list of shame.