smtp1.kalidea.com has no MX records.
Question and response
Question
dig smtp1.kalidea.com. MX
Answer
The response has no answer records.
Authority
kalidea.com. 300 SOA ns1.amenworld.com. root.amen.fr. 2026012102 86400 7200 2592000 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0