mailproxy2.nextlayer.at has no NS records.
NS records for this zone are defined at nextlayer.at.
NS records for this zone are defined at nextlayer.at.
Question and response
Question
dig mailproxy2.nextlayer.at. NS
Answer
The response has no answer records.
Authority
nextlayer.at. 86400 SOA ns.nextlayer.at. hostmaster.nextlayer.at. 3021134910 10800 900 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0