com.bd has no MX records.
Question and response
Question
dig com.bd. MX
Answer
The response has no answer records.
Authority
com.bd. 86400 SOA dns.bd. root.dns.bd. 2025227810 1200 3600 604800 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0