UDRP 2 (a):
When forwarding a complaint, including any annexes, electronically to the Respondent, it shall be the Provider's responsibility to employ reasonably available means calculated to achieve actual notice to Respondent. Achieving actual notice, or employing the following measures to do so, shall discharge this responsibility:
(List of ways they can contact you follows)
Em outras palavras, parece que qualquer que seja o seu provedor de resolução de disputas ( uma dessas excelentes pessoas quer isso.