Summary
mx.iplannetworks.net has one IP number , which also has a corresponding reverse pointer.
mx.cekd.com,
mx.ean.edu.ar,
mx.ibl.com.ar,
mx.bdv.com.ar,
mx.efe.com.ar and at least 100 other hosts cnames to this hostname.
mx.costabbd.com,
mx.galetto.com.ar,
mx.idgroup.com.ar,
mx.forum-bi.com.ar,
mx.sea-corp.com.ar and at least five other hosts point to the same IP.
amuca.com,
mae.com.ar,
buro.com.ar,
palermo.edu,
carrado.com and at least 29 other hosts use this as a mailserver.
iplannetworks.net is delegated to three nameservers, however all three delegated nameservers are missing in the zone and two other nameservers are listed. There are two duplicated IP numbers. Some of them are on the same IP network. Incoming mail for
iplannetworks.net is handled by three mailservers at
iplannetworks.net themselves. Two of them are on the same IP network.
mx.iplannetworks.net is hosted on a server in Argentina.