bouygtel.net has no MX records.
Question and response
Question
dig bouygtel.net. MX
Answer
The response has no answer records.
Authority
bouygtel.net. 900 SOA primary.localdomain. dnsextmaster.bouyguestelecom.fr. 3242 10800 3600 2419200 900
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0