mx.siteprotect.com has no NS records.
NS records for this zone are defined at siteprotect.com.
NS records for this zone are defined at siteprotect.com.
Question and response
Question
dig mx.siteprotect.com. NS
Answer
The response has no answer records.
Authority
siteprotect.com. 300 SOA a.dns.siteprotect.com. hostmaster.siteprotect.com. 2025120809 28800 7200 1209600 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0