Today I started a proceeding against a website that I am interested in acquiring. As the site in question fails to provide accurate whois information - postal mail to the listed address is returned, and e-mail, phone, and fax details are not provided - I requested that the registrar cancels the domain. In so many words, inaccurate or incomplete whois data offers a pretty easy route to domain acquisition.
Today I sent a quick note to Godaddy regarding their help page Modifying .DE Name Servers which unfortunately does not work too well. As a matter of fact, the information provided results in the Denic reply "The modifications you requested for the domain have FAILED. Error: RegCCTLDSvc: ModifyRegistration request failure - UNHANDLED NIC RESPONSE". Based on my own experience, I recommended they change the contents of that help page to the following as the setting below actually works.