dns2.thalos.fr has no MX records.
Question and response
Question
dig dns2.thalos.fr. MX
Answer
The response has no answer records.
Authority
thalos.fr. 1800 SOA dns1.thalos.fr. dns2.thalos.fr. 2026012001 3600 900 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0