240.231.19.23.hosted.by.hostdzire.com has no MX records.
Question and response
Question
dig 240.231.19.23.hosted.by.hostdzire.com. MX
Answer
The response has no answer records.
Authority
hostdzire.com. 1800 SOA dane.ns.cloudflare.com. dns.cloudflare.com. 2395327404 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0