The _______________ was the first list to utilize the concept of using DNS records to filter or "blackhole" spam-sending IP addresses and domains.

Name: The _______________ was the first list to utilize the concept of using DNS records to filter or "blackhole" spam-sending IP addresses and domains.
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The Answer of The _______________ was the first list to utilize the concept of using DNS records to filter or "blackhole" spam-sending IP addresses and domains.

The _______________ Was the First List to Utilize the Concept