Incoming mail for web.upmc.fr is handled by two mailservers on different IP networks. web.upmc.fr has one IP number. www.upmc.fr and www.jussieu.fr cnames to this hostname. uvsq.fr, io.uvsq.fr, jussieu.fr, lune.uvsq.fr, nova.uvsq.fr and at least 100 other hosts share mailservers with this domain. upmc.fr is a domain controlled by three nameservers. Two of them are on the same IP network. Incoming mail for upmc.fr is handled by one mailserver having a total of two IP numbers. They are on the same IP network. web.upmc.fr is hosted on a server in France.