Summary
sun.burda.ru has one IP number , which also has a corresponding reverse pointer.
ns2.burdanet.ru point to the same IP.
burda.ru is a domain controlled by two nameservers at
burdanet.ru. They are on different IP networks. Incoming mail for
burda.ru is handled by three mailservers at
burda.ru themselves. All of them are on the same IP network.
burda.ru has one IP number.
sun.burda.ru is hosted on a server in Russian Federation.