go
soudeuse.dedibox.fr has one IP number , which also has a corresponding reverse pointer. smtp.dedibox.fr and smtp1.dedibox.fr point to the same IP. dedibox.fr is a domain controlled by two nameservers at dedibox.fr themselves. They are on the same IP network. Incoming mail for dedibox.fr is handled by one mailserver at mxproxy.com. dedibox.fr has one IP number. soudeuse.dedibox.fr is hosted on a server in France.

soudeuse.dedibox.fr
a records
 
+ 88.191.254.4 88.160.0.0/11 AS12322 -
+ --- -

dedibox.fr
a records
 
+ 88.191.254.2 88.160.0.0/11 AS12322  
+ ---  
ns-soa records
dns1.dedibox.fr
+ 88.191.254.6 88.160.0.0/11 AS12322 pointeuse.dedibox.fr
+ --- pointeuse.dedibox.fr
ns records
dns1.dedibox.fr
+ 88.191.254.6 88.160.0.0/11 AS12322 pointeuse.dedibox.fr
+ --- pointeuse.dedibox.fr
dns2.dedibox.fr
+ 88.191.254.7 88.160.0.0/11 AS12322 foreuse.dedibox.fr
+ --- foreuse.dedibox.fr
mx records
mx0.mxproxy.com
+ 88.191.253.117 88.160.0.0/11 AS12322  
+ ---  
ip numbers of host
88.191.254.4
ptrs of ip numbers
soudeuse.dedibox.fr
ip numbers using ptr to this host
88.191.254.4
hostnames sharing ip with a-records
smtp.dedibox.fr
smtp1.dedibox.fr
domains using this as mailserver under another name
dedibox.com
mxproxy.com