mail.pugmarks.com has no NS records.
NS records for this zone are defined at pugmarks.com.
NS records for this zone are defined at pugmarks.com.
Question and response
Question
dig mail.pugmarks.com. NS
Answer
The response has no answer records.
Authority
pugmarks.com. 300 SOA ns1.pugmarks.com. hostmaster.pugmarks.com. 2026012303 7200 3600 1728000 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0