mx1.e24.net.pl has one IP number , but the reverse is mx1.blink.pl. mx.emef.pl, mx3.arx.pl, mx2.arx.pl, mx1.arx.pl, mx3.blink.pl and at least 89 other hosts point to the same IP. e24.net.pl use this as a mailserver. e24.net.pl is delegated to two nameservers, however both delegated nameservers are missing in the zone and two other nameservers are listed instead. There are two duplicated IP numbers. Some of them are on the same IP network. Incoming mail for e24.net.pl is handled by three mailservers at e24.net.pl themselves. Two mailservers have the same IP number. They are on the same IP network. e24.net.pl has one IP number. mx1.e24.net.pl is hosted on a server in Poland.