Incoming mail for alf-c.stack.nl is handled by two mailservers at stack.nl. They are on the same IP network. alf-c.stack.nl has one IP number , but the reverse is alf.stack.nl. alf.stack.nl cnames to this hostname. var.cx, zlo.nu, doce.nl, hoeg.nl, essf.nl and at least 39 other hosts share mailservers with this domain. stack.nl is a domain controlled by three nameservers. All of them are on the same IP network. Incoming mail for stack.nl is handled by two mailservers also at stack.nl. They are on the same IP network. alf-c.stack.nl is hosted on a server in Netherlands.