mx.iblhelper.net has no NS records.
NS records for this zone are defined at iblhelper.net.
NS records for this zone are defined at iblhelper.net.
Question and response
Question
dig mx.iblhelper.net. NS
Answer
The response has no answer records.
Authority
iblhelper.net. 3600 SOA ixion.iberlayer.com. admin.iberlayer.com. 2026021702 3600 1800 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0