mx.gkg.net has one IP number. gchr.net, axsz.com, cgri.net, r7hsa.com, kcllc.com and at least 100 other hosts use this as a mailserver. gkg.net is a domain controlled by two nameservers at gkg.net themselves. They are on the same IP network. Incoming mail for gkg.net is handled by one mailserver also at gkg.net. gkg.net has two IP numbers. They are on the same IP network. mx.gkg.net is hosted on a server in United States.