3rd Party Services
Our network and servers rely on numerous 3rd-party services, mostly free and independent community efforts:
DNS Services |
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ORSN, European Open Root Server Network The Independent DNS Solution with IPv6 support for the European Community. The goal is to limit the influence and control of the U.S. Goverment over the Internet. |
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EditDNS.net EditDNS.net is a free DNS service and provides our backup DNS services. |
Spam Detection Networks |
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Vipul’s Razor Vipul’s Razor is a distributed, collaborative, spam detection and filtering network. |
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Pyzor Pyzor is a collaborative, networked system to detect and block spam using identifying digests of messages. |
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Distributed Checksum Clearinghouse (DCC) The DCC or Distributed Checksum Clearinghouse is an anti-spam content filter that runs on a variety of operating systems. As of mid-2006, it involves millions of users, tens of thousands of clients and more than 250 servers collecting and counting checksums related to more than 300 million mail messages on week days. |
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Project Honey Pot Project Honey Pot is the first and only distributed system for identifying spammers, and the spambots they use to scrape addresses from websites. k18.ch systems have traps installed, which allows not only to tell that the messages are spam, but also the exact moment when the address was harvested and the IP address that gathered it. Project Honey Pot collates, processes, and shares this data. They also work with law enforcement authorities to track down and prosecute spammers. |
DNS Blocking Lists |
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ZEN – Combined Spamhaus Project DNSBLs ZEN is the combination of all Spamhaus DNSBLs into one single powerful and comprehensive blocklist to make querying faster and simpler. It contains the SBL, the XBL and the PBL blocklist. |
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Spam and Open Relay Blocking System (SORBS) The SORBS DNSBL was born in November 2002. It was felt that by publicising a list of compromised hosts, the ever-increasing flow of spam through those hosts could be stopped. On January 6, 2003, the SORBS DNSBL was officially launched to the public. |
Not Just Another Bogus List (NJABL.ORG) NJABL.ORG maintains a list of known and potential spam sources (open relays, open proxies, open form to mail HTTP gateways, dynamic IP pools, and direct spammers) for the purpose of being able to tag or refuse email and prevent at least some spam. |
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Swiss Network Operators Group (SwiNOG) DNSRBL The Swiss Network Operators Group (SwiNOG) is an informal group of people who are concerned with engineering and operation of the Swiss Internet. |
Certificate Authorities |
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CAcert.org A community driven x.509 SSL/TLS certificate authority that issues certificates to the public at large for free. CAcert’s goal is to promote awareness and education on computer security through the use of encryption, specifically with the X.509 family of standards. |










