go
borderware-email-sec1.nmc.be has one IP number , which also has a corresponding reverse pointer. nmc.eu, nmc.be, nmc-uk.com, nomawood.com, nmc-france.fr and at least four other hosts use this as a mailserver. nmc.be is a domain controlled by two nameservers at be.colt.net. They are on different IP networks. Incoming mail for nmc.be is handled by two mailservers at nmc.be themselves. They are on the same IP network. nmc.be has one IP number. borderware-email-sec1.nmc.be is hosted on a server in Belgium.

borderware-email-sec1.nmc.be
a records
 
+ 213.246.217.77 213.246.192.0/18 AS8220 -
+ --- -

nmc.be
a records
 
+ 62.153.110.44 62.153.0.0/16 AS3320  
+ ---  
ns-soa records
ns0.be.colt.net
+ 212.74.78.17 212.74.78.0/24 AS8220 -
+ --- -
ns records
ns0.be.colt.net
+ 212.74.78.17 212.74.78.0/24 AS8220 -
+ --- -
ns1.be.colt.net
+ 212.74.77.17 212.74.77.0/24 AS8220 -
mx records
borderware-email-sec1.nmc.be
+ 213.246.217.77 213.246.192.0/18 AS8220 -
+ --- -
borderware-email-sec2.nmc.be
+ 213.246.217.78 213.246.192.0/18 AS8220 -
ip numbers of host
213.246.217.77
ptrs of ip numbers
borderware-email-sec1.nmc.be
ip numbers using ptr to this host
213.246.217.77
domains using this as mailserver
covingsandcornices.co.uk
dalesdecor.co.uk
nmc-deutschland.de
nmc-france.fr
nmc-uk.com
nmc.be
nmc.eu
nmcamerica.com
nomawood.com