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Listing Criteria

DNSRBL uses intelligent filters that scan a large number of mail feeds to determine if a message is SPAM, JUNK and whether the SMTP transaction conforms to standards.

DNSRBL is not a traditional spam trap. Junk (promotional) mail, viruses, phishing and other malicious mailings will cause a listing. In addition, DNSRBL is checking that the PTR record and HELO conform to standards. Authentication schemes are also checked (SPF/DKIM).

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Please report DNS or Website issues to: postmaster@dnsrbl.org. DO NOT send removal requests.