mxout01spf.cygrids.net has no NS records.
NS records for this zone are defined at cygrids.net.
NS records for this zone are defined at cygrids.net.
Question and response
Question
dig mxout01spf.cygrids.net. NS
Answer
The response has no answer records.
Authority
cygrids.net. 300 SOA dns01.cygrids.net. registry.cygrids.net. 2026021601 3600 600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0