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If you query the legacy DNSBLs via Cloudflare's DNS move to Spamhaus Technology's free Data Query Service

ID: 91444337-4d3c-58bf-a9b6-062337627d4e

STIX ID: report--91444337-4d3c-58bf-a9b6-062337627d4e

Feed Name: The Spamhaus Project

Date Published: 2022-01-17

Date Updated: 2026-04-30

Author: The Spamhaus Team

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If you use the Spamhaus Project DNS blocklists (DNSBLs) together with Cloudflare DNS, Cloudflare's move to Spamhaus Technology's free Data Query Service requires changes to your email infrastructure to continue querying legacy DNSBLs.

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