mx1.spaceweb.ru has four IP numbers. All of them are on the same IP network. mx3.vnn.ru point to the same IP. sound-project.com use this as a nameserver. ryh.ru, dhe.ru, pkc.ru, bzr.ru, ign.ru and at least 100 other hosts use this as a mailserver. spaceweb.ru is a domain controlled by two nameservers at spaceweb.ru themselves. They are on the same IP network. Incoming mail for spaceweb.ru is handled by two mailservers also at spaceweb.ru. They are on the same IP network. spaceweb.ru has one IP number. mx1.spaceweb.ru is hosted on four servers in Russian Federation.