mail.songhuadan.com has one IP number. 165.in, 2020.cc, jqw.com, 53p.net, 5076.com and at least 100 other hosts point to the same IP. songhuadan.com is delegated to two nameservers, however both delegated nameservers are missing in the zone. All nameservers are at dns-diy.com. They are on different IP networks. Incoming mail for songhuadan.com is handled by seven mailservers having a total of 28 IP numbers. Some of them are on the same IP network. songhuadan.com has one IP number. mail.songhuadan.com is hosted on a server in China.