mail.vtoasp.net has no NS records.
NS records for this zone are defined at vtoasp.net.
NS records for this zone are defined at vtoasp.net.
Question and response
Question
dig mail.vtoasp.net. NS
Answer
The response has no answer records.
Authority
vtoasp.net. 3600 SOA ns1.ouludc.fi. hostmaster.odc.fi. 2026021801 28800 7200 1209600 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0