$ dig mail.google.com aaaa ;; ANSWER SECTION: mail.google.com. 56496 IN CNAME googlemail.l.google.com. googlemail.l.google.com. 126 IN AAAA 2404:6800:8005::12 Cheers, Tao -- http://huangtao.me/ http://www.google.com/profiles/UniIsland School of Mathematical Science Peking University