Announcement: New categories in dnswl.org

Over the past weeks, we continued to enhance dnswl.org data not only by adding more “good” mailservers, but also by refining the categories we assign to these entries.

The latest additions are the “Manufacturing/Industrial” (127.0.13.* response code) and “Retail” (127.0.14.* response code) categories. If we add a new category, existing entries may take some time until they are re-assigned.