76.0.90.77.hostbrr.com has no MX records.
Question and response
Question
dig 76.0.90.77.hostbrr.com. MX
Answer
The response has no answer records.
Authority
hostbrr.com. 1800 SOA brad.ns.cloudflare.com. dns.cloudflare.com. 2396958766 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0