mail10.transip.nl has one IP number , via cname to virt10.transip.nl , which also has a corresponding reverse pointer. 5fm.nl, gnoe.nu, reisa.nl, xozen.nl, krekr.nl and at least 100 other hosts point to the same IP. nl.com use this as a mailserver. transip.nl is a domain controlled by three nameservers at transip.nl themselves. Two of them are on the same IP network. Incoming mail for transip.nl is handled by two mailservers having a total of four IP numbers. All of them are on the same IP network. transip.nl has one IP number. mail10.transip.nl is hosted on a server in Netherlands.