colo128b.bulletinintelligence.com has no MX records.
Question and response
Question
dig colo128b.bulletinintelligence.com. MX
Answer
The response has no answer records.
Authority
bulletinintelligence.com. 1800 SOA jimmy.ns.cloudflare.com. dns.cloudflare.com. 2395718370 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0