ns2.amenworld.com has no MX records.
Question and response
Question
dig ns2.amenworld.com. MX
Answer
The response has no answer records.
Authority
amenworld.com. 300 SOA paris.amen.fr. root.amen.fr. 2025042902 86400 7200 2592000 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0