mpatmail.phishlabs.com has no NS records.
NS records for this zone are defined at phishlabs.com.
NS records for this zone are defined at phishlabs.com.
Question and response
Question
dig mpatmail.phishlabs.com. NS
Answer
The response has no answer records.
Authority
phishlabs.com. 900 SOA ns-392.awsdns-49.com. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0