mail.flexiblemarket.store has no NS records.
NS records for this zone are defined at flexiblemarket.store.
NS records for this zone are defined at flexiblemarket.store.
Question and response
Question
dig mail.flexiblemarket.store. NS
Answer
The response has no answer records.
Authority
flexiblemarket.store. 3601 SOA dns1.registrar-servers.com. hostmaster.registrar-servers.com. 1757520304 43200 3600 604800 3601
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0