mx.alphafundusa.com has no NS records.
NS records for this zone are defined at alphafundusa.com.
NS records for this zone are defined at alphafundusa.com.
Question and response
Question
dig mx.alphafundusa.com. NS
Answer
The response has no answer records.
Authority
alphafundusa.com. 3600 SOA dns.alphafundusa.com. hostmaster.alphafundusa.com. 1423699927 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0