pronote.vincentdepaul84.com has no MX records.
Question and response
Question
dig pronote.vincentdepaul84.com. MX
Answer
The response has no answer records.
Authority
vincentdepaul84.com. 300 SOA dns112.ovh.net. tech.ovh.net. 2026012800 86400 3600 3600000 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0