mail.safehost.zone has no NS records.
NS records for this zone are defined at safehost.zone.
NS records for this zone are defined at safehost.zone.
Question and response
Question
dig mail.safehost.zone. NS
Answer
The response has no answer records.
Authority
safehost.zone. 3600 SOA ns1.nsgrid.net. dns.nsgrid.net. 2020080513 3600 600 43200 3600
Additional
. 0 OPT ; payload 1224, xrcode 0, version 0, flags 0