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The SMTP IPv4 DNS Block List

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The IP.v4BL.org DNS list is now closed to direct public access - please continue to use the FREE.v4BL.org DNS list instead.
Click here to see our usage policy.

Current DNS list return codes:
127.0.0.2 = [SPAM]
127.0.0.3 = [rDNS | FCrDNS | Domain]
127.0.0.4 = [HACKING]
127.0.0.5 = [AUTH ABUSE]

Text file with recently listed 127.0.0.4 [HACKING] IPs
If you are making good use of this file and would like to have access to larger recently listed IPs, just let us know.
Please do not abuse of any of our IP list services. Which includes using them in any way within any product or service that is intended to be sold, or resold. Nor should you provide any part of any of our lists to anyone else.


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