mx.marthagreerrealty.com has no NS records.
NS records for this zone are defined at marthagreerrealty.com.
NS records for this zone are defined at marthagreerrealty.com.
Question and response
Question
dig mx.marthagreerrealty.com. NS
Answer
The response has no answer records.
Authority
marthagreerrealty.com. 3600 SOA dns.marthagreerrealty.com. hostmaster.marthagreerrealty.com. 1503459981 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0