Alright, that was fun!
After running the relay tester for more than five years it's really time for us to take a break. The system was maintaining itself, but to be truly useful a number of updates were well overdue. So there, so long. ORDB will take care of all your relay checking needs.
The dev.null.dk zone will be empty for now; but we might fill it with another source of bothersome IPs some day in the distant future.
Information on the spamsources.fabel.dk list is on the spamsources site.