ns3.fr.clara.net has no MX records.
Question and response
Question
dig ns3.fr.clara.net. MX
Answer
The response has no answer records.
Authority
fr.clara.net. 21600 SOA ns3.fr.clara.net. hostmaster.fr.clara.net. 2021050600 86400 3600 604800 21600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0