go
mail7.rdai.com point to 141.155.199.22.

mail7.rdai.com
a records
 
+ 141.155.199.22 141.155.192.0/19 AS19262  
+ ---  
ip numbers of host
141.155.199.22
hostnames sharing ip with a-records
mail7.rdai.com
domains using this as mailserver
expoteric.com
solid-design.com
up4anything.com