ns1.nic.cm has no MX records.
Question and response
Question
dig ns1.nic.cm. MX
Answer
The response has no answer records.
Authority
nic.cm. 86400 SOA ns1.nic.cm. dotcm.nic.cm. 2025021404 10800 3600 2419200 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0