Summary
ar.vmx.terra.com has one IP number , which is the same as for
vmx.terra.com, but the reverse is
vmx.terra.com.
infomail.infovia.com.ar and
infomail2.infovia.com.ar cnames to this hostname.
vmx.terra.com,
smtpmx.uoas.net,
mx.terra.com.co,
smtpmx.masac.net,
pe.vmx.terra.com and at least 100 other hosts point to the same IP.
terra.com.ar,
acteon.com.ar,
avella.com.ar,
speedy.com.ar,
galiza.com.ar and at least twelve other hosts use this as a mailserver.
ar.vmx.terra.com is hosted on a server in United States.