ns4.lerelaisinternet.com has no MX records.
Question and response
Question
dig ns4.lerelaisinternet.com. MX
Answer
The response has no answer records.
Authority
lerelaisinternet.com. 3600 SOA name.nordnet.fr. root.nordnet.fr. 2026021602 10800 3600 3600000 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0