ns3.aziondns.org has no MX records.
Question and response
Question
dig ns3.aziondns.org. MX
Answer
The response has no answer records.
Authority
aziondns.org. 3600 SOA ns1.aziondns.net. admin.azion.com. 2026022601 86400 86400 86400 120
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0