dnhs.inet.pl is a domain controlled by two nameservers at myinet.pl. They are on the same IP network. Incoming mail for dnhs.inet.pl is handled by one mailserver at dnhs.inet.pl themselves. bic.pl, wset.pl, psew.pl, nexbau.se, piwoni.pl and at least 55 other hosts share nameservers with this domain. mail.dnhs.inet.pl are subdomains to this hostname. inet.pl is a domain controlled by two nameservers at inet.pl themselves. They are on the same IP network. Incoming mail for inet.pl is handled by one mailserver also at inet.pl. inet.pl has one IP number.