mailrelay3.communiteq.com has no MX records.
Question and response
Question
dig mailrelay3.communiteq.com. MX
Answer
The response has no answer records.
Authority
communiteq.com. 1800 SOA anuj.ns.cloudflare.com. dns.cloudflare.com. 2397156084 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0