wecrm.monoperateurlocal.fr has no MX records.
Question and response
Question
dig wecrm.monoperateurlocal.fr. MX
Answer
The response has no answer records.
Authority
monoperateurlocal.fr. 3600 SOA ns1.ornethd.net. noc.ornethd.net. 1689240406 3600 600 1209600 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0