UUNet hosts more spammers than any other ISP. It has 151 listings on the Spammers Block List (SBL), including 34 known spam gangs with ROKSO records, according to the anti-spam organisation Spamhaus' records for February 2004.
The second worst offender, Chinanet-QD, has 82 entries on the SBL. It hosts Alan Ralsky, listed as the single worst spammer on the ROKSO list.
Banning unsolicited commercial email is a simple matter, Spamhaus says. it has examples of well written anti-spam rules for ISPs wanting to toughen their stance. Finding the will to enforce these rules is another thing.
In its acceptable use policy, UUNet states: "It is explicitly prohibited to send unsolicited bulk mail messages (junk mail or spam) of any kind (commercial advertising, political tracts, announcements), etc."
Abovenet, too, has a clear and prominent anti-spam policy - and is number four on the worst-spam ISP list. It host one of the biggest villains: Scott Richter/Wholesale Bandwidth, who made number four on the invividual offender list. ®
The top 10 is: