mail.bangddy.shop has no MX records.
Question and response
Question
dig mail.bangddy.shop. MX
Answer
The response has no answer records.
Authority
shop. 3600 SOA a.gmoregistry.net. noc.gmoregistry.net. 1772759977 1800 900 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0