mail.vadavo.net has no NS records.
NS records for this zone are defined at vadavo.net.
NS records for this zone are defined at vadavo.net.
Question and response
Question
dig mail.vadavo.net. NS
Answer
The response has no answer records.
Authority
vadavo.net. 86400 SOA ns1.nubedns.com. sistemas.vadavo.com. 2026022801 3600 7200 1209600 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0