mailing.whc.ca has no NS records.
NS records for this zone are defined at whc.ca.
NS records for this zone are defined at whc.ca.
Question and response
Question
dig mailing.whc.ca. NS
Answer
The response has no answer records.
Authority
whc.ca. 1800 SOA coleman.ns.cloudflare.com. dns.cloudflare.com. 2397607117 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0