shared6.savvior.com has no MX records.
Question and response
Question
dig shared6.savvior.com. MX
Answer
The response has no answer records.
Authority
savvior.com. 1800 SOA frank.ns.cloudflare.com. dns.cloudflare.com. 2397261649 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0