What is a DNSBL?
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
What are email block lists?
What are email black lists?
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...
What is SORBS?
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