mx-relay.merlion.ru has no NS records.
NS records for this zone are defined at merlion.ru.
NS records for this zone are defined at merlion.ru.
Question and response
Question
dig mx-relay.merlion.ru. NS
Answer
The response has no answer records.
Authority
merlion.ru. 360 SOA ns1.merlion.ru. domains.merlion.ru. 2026021607 3600 900 3600000 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0