mail.bulvar.ws has one IP number , but the reverse is mx.mchost.ru. mail.3.kz, mail.xqa.ru, mail.jib.ru, mail.aib.su, akademik.ru and at least 100 other hosts point to the same IP. bulvar.ws is delegated to two nameservers, however both delegated nameservers are missing in the zone. All nameservers are at parkpage.foundationapi.com. They are on the same IP network. Incoming mail for bulvar.ws is handled by one mailserver having a total of two IP numbers. They are on different IP networks. bulvar.ws has one IP number. mail.bulvar.ws is hosted on a server in Russian Federation even though the hostname implies Samoa.