Querying Spamhaus via Cloudflare DNS? Read this

Remember how I warned that querying Spamhaus via public DNS resolvers wasn't a great idea?

"Spamhaus clearly doesn't want to provide this IP reputation data via [public resolvers] and right now it's just a question of how effective they are at blocking it. They're not fully effective at it today, but I'm sure they'll get better at it over time."

Well, here they are, getting better: This is a clear warning from Spamhaus that while it may work to query Spamhaus via Cloudflare's public DNS service today, it's not going to work in the near future.

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