mx.interganleguna.com has no NS records.
NS records for this zone are defined at interganleguna.com.
NS records for this zone are defined at interganleguna.com.
Question and response
Question
dig mx.interganleguna.com. NS
Answer
The response has no answer records.
Authority
interganleguna.com. 3600 SOA dns.interganleguna.com. hostmaster.interganleguna.com. 1733984363 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0