Incoming mail for mail.tim.it is handled by six mailservers at telecomitalia.it. Some of them are on the same IP network. 187.it, tilab.com, tessweb.net, webtess.net, agrisiel.net and at least 14 other hosts share mailservers with this domain. e2kintsmtp01c.mail.tim.it are subdomains to this hostname. tim.it is a domain controlled by two nameservers on different IP networks. Incoming mail for tim.it is handled by two mailservers at tim.it themselves. They are on different IP networks. tim.it has one IP number.