Summary
mail.de.uu.net has four IP numbers. All of them are on the same IP network.
mail.fr.uu.net,
smtp.fr.uu.net,
smtp.nl.uu.net,
smtp.be.uu.net,
smtp.cityweb.de and at least nine other hosts point to the same IP.
3w.cz,
bga.de,
faehr.de,
velta.de,
vigb.net and at least 100 other hosts use this as a mailserver.
pop.mail.de.uu.net,
www.mail.de.uu.net,
smtpin0.mail.de.uu.net,
smtpin2.mail.de.uu.net,
smtpout.mail.de.uu.net and at least six other hosts are subdomains to this hostname.
de.uu.net is a domain controlled by two nameservers at
ns.de.uu.net. They are on different IP networks. Incoming mail for
de.uu.net is handled by one mailserver having a total of two IP numbers. They are on the same IP network.
mail.de.uu.net is hosted on four servers in Europe.