mx.tonometermusic.com has no NS records.
NS records for this zone are defined at tonometermusic.com.
NS records for this zone are defined at tonometermusic.com.
Question and response
Question
dig mx.tonometermusic.com. NS
Answer
The response has no answer records.
Authority
tonometermusic.com. 3600 SOA dns.tonometermusic.com. hostmaster.tonometermusic.com. 1485985505 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0