mx.placebophase.com has no NS records.
NS records for this zone are defined at placebophase.com.
NS records for this zone are defined at placebophase.com.
Question and response
Question
dig mx.placebophase.com. NS
Answer
The response has no answer records.
Authority
placebophase.com. 3600 SOA dns.placebophase.com. hostmaster.placebophase.com. 1748428253 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0