Summary
emr0.eu.uu.net has one IP number , which also has a corresponding reverse pointer.
emr.eu.uu.net point to the same IP.
eu.uu.net is a domain controlled by two nameservers at
ns.uu.net. They are on the same IP network. Incoming mail for
eu.uu.net is handled by one mailserver having a total of two IP numbers. They are on the same IP network.
emr0.eu.uu.net is hosted on a server in Europe.