ns.edupage9.org has no MX records.
Question and response
Question
dig ns.edupage9.org. MX
Answer
The response has no answer records.
Authority
edupage9.org. 600 SOA ns53.domaincontrol.com. dns.jomax.net. 2025111401 28800 7200 604800 600
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0