smtp.netmxserver.net has no NS records.
NS records for this zone are defined at netmxserver.net.
NS records for this zone are defined at netmxserver.net.
Question and response
Question
dig smtp.netmxserver.net. NS
Answer
The response has no answer records.
Authority
netmxserver.net. 600 SOA ns15.domaincontrol.com. dns.jomax.net. 2025102706 28800 7200 604800 600
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0