go
mail.register.it has one IP number , which also has a corresponding reverse pointer. pop.otl.it, pop.pvg.it, mail.tng.it, pop.iluss.it, mail.prom.it and at least 100 other hosts cnames to this hostname. mx2.meshops.eu, gammaplast.com, mx1.sudeseo.com, mx2.agaunza.com, pop.register.it and at least 22 other hosts point to the same IP. leu.it, ziu.it, eot.it, lfi.it, rmg.it and at least 100 other hosts use this as a mailserver. register.it is a domain controlled by two nameservers at register.it themselves. They are on different IP networks. Incoming mail for register.it is handled by one mailserver also at register.it. register.it has one IP number. mail.register.it is hosted on a server in Italy.

mail.register.it
a records
 
+ 195.110.124.132 195.110.124.0/22 AS12363 -
+ --- -

*.register.it
a records
 
+ 195.110.124.134 195.110.124.0/22 AS12363  
+ ---  

register.it
a records
 
+ 195.110.124.134 195.110.124.0/22 AS12363  
+ ---  
ns-soa records
ns1.register.it
+ 195.110.124.140 195.110.124.0/22 AS12363 -
+ --- -
ns records
ns1.register.it
+ 195.110.124.140 195.110.124.0/22 AS12363 -
+ --- -
ns2.register.it
+ 213.92.11.34 213.92.0.0/17 AS3313 -
mx records
mail.register.it
+ 195.110.124.132 195.110.124.0/22 AS12363 -
+ --- -
ip numbers of host
195.110.124.132
ptrs of ip numbers
mail.register.it
ip numbers using ptr to this host
195.110.124.132
hostnames sharing ip with a-records
gammaplast.com
mail.igdolazabal.com
mail.masodoss.com
mail.newtonsrl.com
mail.newtonsrl.net
mail.nominalia.com
mail.register-europe.com
mail.stemstes.org
mail.wattverde.it
mx1.agaunza.com
mx1.amazonascapadocia.com
mx1.etiquetasdevino.com
mx1.iberiona.org
mx1.importrucks.com
mx1.paco-ramos.com
mx1.pacovidrio.com
mx1.restaurante-neptuno.com
mx1.sudeseo.com
mx1.vergeblanca.org
mx2.agaunza.com
mx2.meshops.eu
pop.register.it
pop.wattverde.it
register.betonlana.com
register.frutirol.com
smtp.register-europe.com
smtp.tlrsoft.com
hostnames pointing here by cname
diana.cursore.it
mail.adactacom.net
mail.aironeservice.net
mail.airosa.it
mail.atlogic.net
mail.boutiquehoteltrevi.com
mail.caggiano.it
mail.calore.it
mail.cardinalhotelrome.com
mail.casachic.net
mail.chaffoteaux.com
mail.cittavirtuali.com
mail.delphinet.it
mail.elli.net
mail.florencecountryvacation.com
mail.guadagni.com
mail.hanson.it
mail.inzani.it
mail.itservice.com
mail.kolbehotelrome.com
mail.kurtis.it
mail.peopleandpartners.com
mail.poderecastellare.com
mail.poggiodoro.com
mail.primoart.it
mail.prom.it
mail.rhinos.it
mail.sebispa.com
mail.studiovittoririgosi.it
mail.tng.it
mail.vinidispagna.com
pop.abcmilano.net
pop.agenziapeio.com
pop.agrital.net
pop.ansia.net
pop.arten.net
pop.artlabyrinth.net
pop.artsunhouse.net
pop.bancaonline.net
pop.belvederefolgarida.it
pop.bresci.net
pop.businesswork.net
pop.cardiologiaonline.net
pop.cardiologyonline.net
pop.carrozzeriailgiglio.com
pop.castorina.net
pop.certosadimaggiano.net
pop.cetom.net
pop.compressorservice.net
pop.costituzioniregionali.it
pop.denicolai.it
pop.diabetologia.net
pop.dreamart.it
pop.e20online.net
pop.elkron.net
pop.epatologia.net
pop.farmaciaonline.net
pop.farmacionline.net
pop.finanzaonline.net
pop.florenceonline.net
pop.florexinternational.net
pop.giannicornara.net
pop.golfcollinedelgavi.com
pop.guadagnaresoldi.net
pop.heartonline.net
pop.helpingservices.com
pop.hotelalpen.com
pop.hotelbleis.com
pop.hotelcertosadimaggiano.net
pop.hotelcity.net
pop.hotelfiordaliso.com
pop.hotelondezana.net
pop.ilcanto.net
pop.ilquotidiano.net
pop.iluss.it
pop.infomob.net
pop.investire.net
pop.ipincopallino.it
pop.italynews.net
pop.laboratoriolinguistico.it
pop.levatiaprilia.com
pop.lorenzone.net
pop.magazzinisessovenanzio.it
pop.medicina-online.net
pop.misteri.net
pop.motocorse.net
pop.mottura.net
pop.nanna16.com
pop.nefrologia.net
pop.neurologiaonline.net
pop.neurologyonline.net
pop.ngconsulting.net
pop.oncologiamedica.net
pop.oncologyonline.net
pop.opsi.net
pop.ospedale.net
pop.otl.it
pop.pastweb.net
pop.piazzaffari.net
pop.piedicosta.com
pop.pizzanew.net
pop.porschemania.it
pop.psicologiaonline.net
pop.pvg.it
pop.ricciarelli.net
pop.risparmio.net
pop.ristoranteilcanto.net
pop.sessuologia.net
pop.sirtec.net
pop.soldi.net
pop.sovrappeso.net
pop.studioariani.net
pop.terzolas.com
pop.teslacom.net
pop.theworldfashionbook.net
pop.universityonline.net
pop.vaccinionline.net
pop.viaggionline.net
pop.yuppeeriders.net
pop3.mkt-tec.it
domains using this as mailserver
2ware.it
4ur.com
a6n1.com
abmnautica.com
acasadiserena.it
acin.it
acmantova.it
acquacard.com
adbanca.it
aeop.it
affittaroma.com
airh.it
allevamentodeisoffioni.it
alpenarts.com
amelia.it
annamariacammilli.com
apricale.org
artclubdisco.com
artofpewter.com
asit.it
autonoleggi-italservice.it
aziendabari.it
bkmacchine.com
brakko.biz
brionimarco.com
brolioquinto.com
buratto.it
calltrade.biz
calore.it
cameraitalobosniaca.it
carfood.it
carila.it
championspromenade.com
confidicommercio.it
consorziogeas.it
corradosacchi.com
csen.it
dadamovel.com
digitalshop.it
dizy.com
dnetware.it
dontworryrecords.com
dsignstudio.com
e-bios.it
e-touristland.com
easydrill.biz
efeso.biz
eleusis-network.biz
email-service.biz
emailmeeting.biz
emanuelecisi.com
eot.it
ercim.biz
evalser.com
eyewear.it
fermento.biz
firenetltd.it
focherini.it
fuorivia.com
futuraonline.biz
gardalake.biz
gearboxes.biz
gianniloria.it
giocasport.biz
giomax.biz
girasole2000.com
guidodemaio.com
hotelgardenia.com
hotelitaliamantova.com
hotelitaliaroma.com
info.it
inter-service.net
iosaghini.it
ipincopallino.it
iranianloom.com
ironica.it
itcsrl.com
juancarlosparrilla.com
kempro.com
laboratorionautico.it
lanmar.it
laplafercart.it
ldb.it
lespose.com
leu.it
lfi.it
litio.it
magicline.it
mauriz.it
maxinvestigazioni.it
mg-studio.it
normanno.it
nothink.org
obi.it
opportunitaeuropa.it
peruginisrl.com
portetta.it
prexport.com
primafase.com
primoart.it
prom.it
puntoscalve.it
qualificare.info
register.it
rmg.it
sab-imballaggi.com
sartorellimalnate.it
scuola-italia.com
sisco.org
snowfans.net
straga.it
studiopiana.net
studiovittoririgosi.it
tcf.it
tng.it
tuapensione.it
volleyball.it
yndella.co.uk
yndella.de
ziu.it
domains using this as mailserver under another name
adolfo-dominguez.com
agaunza.com
apistogramma.it
aserta.es
betonlana.com
binaryworks.biz
bluebellfc.co.uk
e-sonda.com
frutirol.com
masodoss.com
meshops.eu
ntpoint.com
pacovidrio.com
pirineustelevisio.com
restaurante-neptuno.com
sudeseo.com
tewa.co.uk