_dc-mx.42938a834e12.spindns.com has no NS records.
NS records for this zone are defined at spindns.com.
NS records for this zone are defined at spindns.com.
Question and response
Question
dig _dc-mx.42938a834e12.spindns.com. NS
Answer
The response has no answer records.
Authority
spindns.com. 1800 SOA emma.ns.cloudflare.com. dns.cloudflare.com. 2397917312 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0