kays.com has no MX records.
Question and response
Question
dig kays.com. MX
Answer
The response has no answer records.
Authority
kays.com. 1800 SOA love.ns.cloudflare.com. dns.cloudflare.com. 2396073273 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0