mail04.anexia.at has no NS records.
NS records for this zone are defined at anexia.at.
NS records for this zone are defined at anexia.at.
Question and response
Question
dig mail04.anexia.at. NS
Answer
The response has no answer records.
Authority
anexia.at. 86400 SOA anexia.secondns.at. support.anexia.at. 48 10000 1800 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0