mx.krfarnsworth.com has no NS records.
NS records for this zone are defined at krfarnsworth.com.
NS records for this zone are defined at krfarnsworth.com.
Question and response
Question
dig mx.krfarnsworth.com. NS
Answer
The response has no answer records.
Authority
krfarnsworth.com. 3600 SOA dns.krfarnsworth.com. hostmaster.krfarnsworth.com. 1835352365 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0