Fake DNSBL Nszones.com Uncovered by Spamhaus

Neil Schwartzman
By Neil Schwartzman
Senior Director, Security Strategy, Receiver Services

Fake DNSBL operators nszones.com were today named on The Spamhaus Project website.

Nszones.com apparently lists IPs found in other DNSBLs, and charges five euros for delisting.

Senders and receivers should beware this enterprise; like scareware, those websites and popups that randomly inform you your computer is infected with a virus, and they can sell you the solution, NSZones gives legitimate DNSBL operators a bad name by publishing fake data, and charging you to get delisted.

DNSBL listings can be tricky matters; senders should determine how many addresses are affected by a given listing, and consider side-stepping the issue by dropping addresses at a given receiver who uses dodgy DNSBLs.

Remember, it is their right to refuse your mail by using a DNSBL or for any other reason, but you are well within your rights to suspend mailings to addresses affected by receivers or DNSBLs that are intransigent, or as is this case, fake.

Return Path does not recommend paying a fee for a delisting from a DNSBL, ever.

Return Path Certified and our Black List Alert tool only reference DNSBLs that have been carefully reviewed, paying consideration in terms of their footprint in the receiver world, conservative listing policies, and ease and responsiveness in the delisting process.

To arrive at our final list for Certification, we consulted DNSBLs operators, receivers, members of the MAAWG senior advisory panel and Senders’ Subcommittee. Black List Alert expands on that list. The DNSBLs Return Path references in our tools are relevant, and ones that you should be concerned about should you be listed.

Listings may be frustrating, but ultimately may point to difficulties with your sign-up processes, infrastructure or other sending practices that you can change, for the better. Listings at fake DNSBLs, of course, do no such thing

Return Path Gold and Platinum client services, and our professional services team can help to identify, and mitigate blacklistings. Get in touch if you wish to find out more about our tools and consulting services.

minute read

Popular stories

Products

BriteVerify

BriteVerify email verification ensures that an email address actually exists in real-time

DemandTools

The #1 global data quality tool used by thousands of Salesforce admins

Everest

Insights and deliverability guidance from the only all-in-one email marketing solution

GridBuddy Cloud

Transform how you interact with your data through the versatility of grids.

Return Path

World-class deliverability applications to optimize email marketing programs

Trust Assessments

A revolutionary new solution for assessing Salesforce data quality

Solutions

Validity for Email

Increase inbox placement and maximize subscriber reach with clean and actionable data

Validity for Data Management

Simplify data management with solutions that improve data quality and increase CRM adoption

Validity for Sales Productivity

Give your sales team back hours per day with tools designed to increase productivity and mitigate pipeline risks in real-time