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The Top 10 Worst
Spammers


The World's Worst ISPs

Spam continues to plague the Internet because a small number of large Internet Service Providers sell service knowingly to professional spammers for profit, or do nothing to prevent spammers operating from their networks.

Although all networks claim to be anti-spam, some network executives factor revenue made from hosting known spam gangs into corporate policy decisions to continue to sell services to spam operations. Others simply decide that closing the holes in their end-user broadband systems that allow spammers access would be too costly to their bottom lines.

The majority of the world's service providers succeed in keeping spammers off their networks and work to maintain a positive anti-spam reputation, but their work is undermined daily by the few networks who, out of corporate greed or mismanagement, choose to be part of the problem.



Source: Spamhaus Blocklist (SBL) database. Data is compiled automatically every 24 hours from the SBL database and sorted by the number of currently listed SBL records for each network (ISP/NSP). The source data, including record information on each spam issue listed can be viewed by clicking on the Number of Known Spam Issues links.
The 10 Worst Spam Support ISPs
As at 02 September 2010 the ISPs with the poorest abuse control of spammers are:
1
telefonica.com.ar Number of Current Known Spam Issues: 70

2
ovh.net Number of Current Known Spam Issues: 68

3
interbusiness.it Number of Current Known Spam Issues: 51

4
ilink.ro Number of Current Known Spam Issues: 48

5
ono.com Number of Current Known Spam Issues: 48

6
xo.com Number of Current Known Spam Issues: 48

7
telecom.com.ar Number of Current Known Spam Issues: 47

8
google.com Number of Current Known Spam Issues: 44

9
telefonica.com.br Number of Current Known Spam Issues: 42

10
unicom-hl Number of Current Known Spam Issues: 41

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