mx.intele.com has no NS records.
NS records for this zone are defined at intele.com.
NS records for this zone are defined at intele.com.
Question and response
Question
dig mx.intele.com. NS
Answer
The response has no answer records.
Authority
intele.com. 3600 SOA dns01.dipcon.com. registry.ports.net. 2026020500 14400 3600 1814400 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0