o1.ptr2257.mailfarm.topsaas.net has no NS records.
NS records for this zone are defined at mailfarm.topsaas.net.
NS records for this zone are defined at mailfarm.topsaas.net.
Question and response
Question
dig o1.ptr2257.mailfarm.topsaas.net. NS
Answer
The response has no answer records.
Authority
topsaas.net. 3600 SOA pdns.binat.net.il. dns.qos.net.il. 2026021900 10800 3600 604800 38400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0