bank has no MX records.
Question and response
Question
dig bank. MX
Answer
The response has no answer records.
Authority
bank. 900 SOA a.nic.bank. admin.tldns.godaddy. 1771803428 1800 300 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0