fw-outbound.esnet.com has no NS records.
NS records for this zone are defined at esnet.com.
NS records for this zone are defined at esnet.com.
Question and response
Question
dig fw-outbound.esnet.com. NS
Answer
The response has no answer records.
Authority
esnet.com. 3600 SOA ns1.esnet.com. cloudsupport.wowinc.com. 2023040301 10800 3600 604800 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0