mx2.mozayka.net has no NS records.
NS records for this zone are defined at mozayka.net.
NS records for this zone are defined at mozayka.net.
Question and response
Question
dig mx2.mozayka.net. NS
Answer
The response has no answer records.
Authority
mozayka.net. 180 SOA nsa2.srv53.net. support.dnshosting.org. 1772647720 1800 600 2419200 180
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0