ns.iunet.it has one IP number , which also has a corresponding reverse pointer. 155.it, sad.it, rai.it, cna.it, imq.it and at least 100 other hosts use this as a nameserver. divtlc.unimi.it use this as a mailserver. iunet.it is a domain controlled by two nameservers on the same IP network. Incoming mail for iunet.it is handled by one mailserver at iunet.it themselves. iunet.it has one IP number , but the reverse is relay.iunet.it. ns.iunet.it is hosted on a server in Italy.