go
mxb.shop-service.at has one IP number , which also has a corresponding reverse pointer. static.122.230.47.78.clients.your-server.de point to the same IP. am-ende-des-tages.de use this as a mailserver. shop-service.at is a domain controlled by two nameservers at schlundtech.de. They are on different IP networks. Incoming mail for shop-service.at is handled by one mailserver at shop-service.at themselves. shop-service.at has one IP number. mxb.shop-service.at is hosted on a server in Germany even though the hostname implies Austria.

mxb.shop-service.at
a records
 
+ 78.47.230.122 78.46.0.0/15 AS24940 -
+ --- -

shop-service.at
a records
 
+ 83.220.145.231 83.220.144.0/23 AS25074  
+ ---  
ns-soa records
ns9.schlundtech.de
+ 62.116.129.129 62.116.128.0/19 AS15456 ns9.ns14.de
+ --- ns9.ns14.de
ns records
ns10.schlundtech.de
+ 62.116.163.100 62.116.162.0/23 AS15456 ns10.ns14.de
+ --- ns10.ns14.de
ns9.schlundtech.de
+ 62.116.129.129 62.116.128.0/19 AS15456 ns9.ns14.de
+ --- ns9.ns14.de
mx records
mxa.shop-service.at
+ 83.220.145.235 83.220.144.0/23 AS25074 -
+ --- -
ip numbers of host
78.47.230.122
ptrs of ip numbers
mxb.shop-service.at
ip numbers using ptr to this host
78.47.230.122
hostnames sharing ip with a-records
static.122.230.47.78.clients.your-server.de
domains using this as mailserver
am-ende-des-tages.de