mx.efirealarms.com has no NS records.
NS records for this zone are defined at efirealarms.com.
NS records for this zone are defined at efirealarms.com.
Question and response
Question
dig mx.efirealarms.com. NS
Answer
The response has no answer records.
Authority
efirealarms.com. 3600 SOA dns.efirealarms.com. hostmaster.efirealarms.com. 1972544947 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0