mx.opet.org has three IP numbers. All of them are on the same IP network. mx.iapl.net, mx.zenny.com, mx.bamka.com, mx.loop9.net, royalinn.com and at least 43 other hosts point to the same IP. opet.org and www.opet.org use this as a mailserver. opet.org is a domain controlled by two nameservers at startlogic.com. They are on different IP networks. Incoming mail for opet.org is handled by one mailserver having a total of three IP numbers. All of them are on the same IP network. opet.org has one IP number. mx.opet.org is hosted on three servers in United States.