154.in-addr.arpa has no MX records.
Question and response
Question
dig 154.in-addr.arpa. MX
Answer
The response has no answer records.
Authority
154.in-addr.arpa. 7200 SOA ns1.afrinic.net. dns-admin.afrinic.net. 2026031006 10800 7200 1814400 7200
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0