mx.trickyblog.com has no NS records.
NS records for this zone are defined at trickyblog.com.
NS records for this zone are defined at trickyblog.com.
Question and response
Question
dig mx.trickyblog.com. NS
Answer
The response has no answer records.
Authority
trickyblog.com. 3600 SOA dns.trickyblog.com. hostmaster.trickyblog.com. 1509341816 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0