Open Relay Database (ORDB), has been a long-standing resource for administrators in their efforts to eliminate spam. But last week ORDB announced that it's shutting down.
The nonprofit organization--founded 5 1/2 years ago--provided a valuable service to the Internet community by making its database available via several methods, including simple and fast DNS queries.
A message posted on the organization's Web site said that "the general consensus within the team is that open relay [blacklists] are no longer the most effective way of preventing spam from entering your network as spammers have changed tactics in recent years, as have the anti-spam community."
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