mail.aa.am has one IP number , via cname to go.domains.live.com , which also has a corresponding reverse pointer. 99v.cn, 58xm.cn, u86.com, dugn.net, jzvan.com and at least 100 other hosts point to the same IP. mail.mail.aa.am are subdomains to this hostname. aa.am is a domain controlled by four nameservers at afraid.org. All of them are on different IP networks. Incoming mail for aa.am is handled by one mailserver at pamx1.hotmail.com. aa.am has one IP number. mail.aa.am is hosted on a server in United States even though the hostname implies Armenia.