mail1.orionvm.com has no NS records.
NS records for this zone are defined at orionvm.com.
NS records for this zone are defined at orionvm.com.
Question and response
Question
dig mail1.orionvm.com. NS
Answer
The response has no answer records.
Authority
orionvm.com. 3600 SOA dns41.cloudns.net. support.cloudns.net. 2026022303 7200 1800 1209600 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0