ns12.kookiejar.net has no MX records.
Question and response
Question
dig ns12.kookiejar.net. MX
Answer
The response has no answer records.
Authority
kookiejar.net. 3600 SOA ns11.kookiejar.net. noc.canhost.ca. 2023070400 3600 3600 604800 10800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0