Based on analysis of 19 hostnames, in total 102 DNS records.
external.compensa.pl uses the IP number 220.127.116.11 only which also mx.finlife.com.pl use.
There are three domains that use the two mail servers external.compensa.pl and edge vig.pl together .
External.compensa.pl and mx.finlife.com.pl point to 18.104.22.168. Viennafinanse.com, vienna-finance.com and vienna-finanse.com use 22.214.171.124 as a mail server. The two mail servers...
External.compensa.pl point to the same IP. Viennafinanse.com, vienna-finance.com and vienna-finanse.com use mx.finlife.com.pl as a mail server under another name. You might also be interested in...