Summary
ns2.dpa.lv has one IP number , but the reverse is
nsz2.ls.lv.
nsz2.ls.lv point to the same IP.
dpa.lv use this as a nameserver.
dpa.lv is a domain controlled by two nameservers at
dpa.lv themselves. They are on the same IP network. Incoming mail for
dpa.lv is handled by two mailservers also at
dpa.lv. They are on different IP networks.
ns2.dpa.lv is hosted on a server in Latvia.