Knowledgebase : General > Blacklists
   

PROBLEM: What is a DNSBL? SOLUTION: Domain Name System Blacklists, also known as DNSBL's, DNS Blacklists or DNS Block Lists are spam-blocking lists that allow a website administrator and ISPs (Internet Service Providers) to block messages from spe...
PROBLEM: What are email block lists? What are email black lists? SOLUTION: Most Internet Service Providers (ISPs) and web servers use a collaborative service to help block and prevent spammers from doing their business. These block lists (as known...
PROBLEM: What is SORBS? SOLUTION: Spam and Open Relay Blocking System, also known as SORBS is a service provided by Proofpoint Inc. (prior to acquisition in July 2011 was GFI software) SORBS is another DNSBL service provider which effectively bloc...