mail.dairylandltd.com.64.42.115.in-addr.arpa has no NS records.
NS records for this zone are defined at 64.42.115.in-addr.arpa.
NS records for this zone are defined at 64.42.115.in-addr.arpa.
Question and response
Question
dig mail.dairylandltd.com.64.42.115.in-addr.arpa. NS
Answer
The response has no answer records.
Authority
64.42.115.in-addr.arpa. 38400 SOA dns.connect.net.pk. asifkhan.connect.net.pk. 2015062514 172800 86400 604800 604800
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0