All delisting requests are manually reviewed to ensure accuracy and security. The email provided in the request must either match an official abuse/support address for the IP owner or be publicly listed on the company's website.

For domain delisting, the requester must prove ownership of the domain. This can involve including the domain in the request and may require a DNS TXT verification record.

Delisting requests that cannot be verified through official emails or domain ownership will be rejected. This ensures that no unauthorized party can remove listings improperly.

Summary:

• IP delisting requires matching abuse/support email
• Domain delisting requires ownership proof, possibly DNS TXT record
• All requests are manually verified

JN DNSBL provides three separate lists to help detect abusive IPs and domains:

• v4.jndnsbl.net: Contains IPv4 addresses that have been reported for spam, abuse, or malicious activity. Use this list to check individual IPv4 addresses.
• v6.jndnsbl.net: Contains IPv6 addresses that are flagged for similar reasons as v4. Use this when checking modern IPv6 infrastructure.
• dbl.jndnsbl.net: Domain-based blacklist. This list flags domains involved in spam campaigns, phishing, or other abusive activity. Useful for email filtering or web filtering solutions.

How to use:

• Perform DNS lookups against the specific list (v4, v6, or dbl) depending on the IP type or domain.
• For automation, use the API or integrate the lists into your mail server, firewall, or monitoring system.
• Always respect the usage guidelines and avoid mass scraping or querying unnecessarily.

Note: Delisting is required for addresses/domains that appear here and must follow the manual verification process.

- 127.0.0.2: Indicates the IP is listed due to spam.
- Future Codes: Additional codes will be introduced as the DNBSL expands; always refer to official documentation for interpretation.

Use the main lookup page to check if an IP or domain is listed. Enter the IP or domain in the search box and press Enter.

The result page will show whether it is listed or unknown, as well as additional metadata such as organization, country, ASN, and abuse contact.

- Always verify that the contact email is official before requesting delisting.
- Do not submit multiple delisting requests for the same IP/domain unnecessarily.
- Keep track of your delisting requests and responses.
- Use the DNSBL responsibly to reduce spam and abuse.