sitebuilder36f01.kinghost.net has no MX records.
Question and response
Question
dig sitebuilder36f01.kinghost.net. MX
Answer
The response has no answer records.
Authority
sitebuilder36f01.kinghost.net. 3600 SOA dns1.kinghost.com.br. abuse.kinghost.net. 2208120001 3600 600 86400 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0