asa.sandsiv.com has no MX records.
Question and response
Question
dig asa.sandsiv.com. MX
Answer
The response has no answer records.
Authority
sandsiv.com. 1800 SOA ray.ns.cloudflare.com. dns.cloudflare.com. 2397390277 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0