mail.firoptix.co.id has no NS records.
NS records for this zone are defined at firoptix.co.id.
NS records for this zone are defined at firoptix.co.id.
Question and response
Question
dig mail.firoptix.co.id. NS
Answer
The response has no answer records.
Authority
firoptix.co.id. 300 SOA dns1.firoptix.co.id. hostmaster.firoptix.co.id. 2017033024 43200 7200 1209600 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0