go
gs-mail2.gensoft.it has one IP number , which also has a corresponding reverse pointer. mx1.zonatortona.com and mx.recapitomilanese.com point to the same IP. gensoft.net, secgroup.it, deltasw.com, riparte.com, jeymunari.it and at least 14 other hosts use this as a mailserver. gensoft.it is delegated to two nameservers, however one extra nameserver is listed in the zone. Two of them are on the same IP network. Incoming mail for gensoft.it is handled by one mailserver at gensoft.it themselves. gensoft.it has one IP number , but the reverse is dns.gensoft.net. gs-mail2.gensoft.it is hosted on a server in Italy.

gs-mail2.gensoft.it
a records
 
+ 212.47.32.9 212.47.32.0/19 AS12345 -
+ --- -

gensoft.it
a records
 
+ 212.47.32.10 212.47.32.0/19 AS12345 dns.gensoft.net
+ --- dns.gensoft.net
ns-soa records
dns.gensoft.net
+ 212.47.32.10 212.47.32.0/19 AS12345 -
+ --- -
ns records
dns.gensoft.net
+ 212.47.32.10 212.47.32.0/19 AS12345 -
+ --- -
dns2.gensoft.net
+ 212.47.32.11 212.47.32.0/19 AS12345 -
dns2.nic.it
+   AS?  
+ ---  
mx records
gs-mail.gensoft.it
+ 212.47.32.12 212.47.32.0/19 AS12345  
+ ---  
ip numbers of host
212.47.32.9
ptrs of ip numbers
gs-mail2.gensoft.it
ip numbers using ptr to this host
212.47.32.9
hostnames sharing ip with a-records
mx.recapitomilanese.com
mx1.zonatortona.com
domains using this as mailserver
deltafrecceazzurre.com
deltasw.com
gensoft.net
hotelengadina.com
hoteleuropabellagio.it
hotelsiredward.it
jeymunari.it
laurorabeautygroup.com
mailbk.gisnet.it
movitecnica.it
ol3online.com
pacchiani.biz
progettonline.net
publafabbrica.com
rent-office.it
ripahotel.com
riparte.com
secgroup.it
syshotelonline.it
domains using this as mailserver under another name
recapitomilanese.com
nameservers missing in parent delegation
dns2.nic.it