mx.renterfriend.com has no NS records.
NS records for this zone are defined at renterfriend.com.
NS records for this zone are defined at renterfriend.com.
Question and response
Question
dig mx.renterfriend.com. NS
Answer
The response has no answer records.
Authority
renterfriend.com. 600 SOA ns77.domaincontrol.com. dns.jomax.net. 2026021281 28800 7200 604800 600
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0