mx.yogabrasilia.org has no NS records.
NS records for this zone are defined at yogabrasilia.org.
NS records for this zone are defined at yogabrasilia.org.
Question and response
Question
dig mx.yogabrasilia.org. NS
Answer
The response has no answer records.
Authority
yogabrasilia.org. 3600 SOA dns.yogabrasilia.org. hostmaster.yogabrasilia.org. 1483800903 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0