Auckland's 2Day.com has withdrawn as an agent of Domainz, saying the registry's controversial new system makes it impossible to meet customer expectations.
The move comes as the new Domainz registry system, with which all the country's largest ISPs have found fault in recent months, is set to be rolled out this weekend.
It also comes in the same week as 2Day announced it has become an accredited ICANN domain name registrar - meaning it will soon be able to directly handle .com and .net registrations. But it won't, unless the local system changes, be registering .nz names.
2Day, which provides name service for 11% of all .nz names (making it the second largest DNS provider behind Xtra, with 14%), has long battled Domainz over the monopoly national registry's terms and policies.
It has strongly opposed the new Domainz system, with managing director Peter Mott arguing for a competitive, ICANN-style shared registry system.
A page added to the 2Day site overnight says that "until we can gain direct access to the .nz registry as a registrar, our easy to use automated registration system will remain unavailable."
2Day will continue to provide free domain name "parking" and its site explains to customers how they can register their .nz names on the Domainz Website but still set them up for name service with 2Day.
2Day customers are being urged to "make your views known" and the explanatory pages include mailto: links to the executive director of the Internet Society of New Zealand (Isocnz), Domainz' owner, and the Isocnz mailing list.