mail.gross.com.ua has no NS records.
NS records for this zone are defined at gross.com.ua.
NS records for this zone are defined at gross.com.ua.
Question and response
Question
dig mail.gross.com.ua. NS
Answer
The response has no answer records.
Authority
gross.com.ua. 3600 SOA ns1.promdns.net. noc.prom.ua. 2026031202 43200 7200 2419200 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0