to.sitekreator.com has no MX records.
Question and response
Question
dig to.sitekreator.com. MX
Answer
The response has no answer records.
Authority
sitekreator.com. 1800 SOA melody.ns.cloudflare.com. dns.cloudflare.com. 2398560395 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0