ns2.cirt.cm has no MX records.
Question and response
Question
dig ns2.cirt.cm. MX
Answer
The response has no answer records.
Authority
cirt.cm. 86400 SOA ns1.cirt.cm. admin.cirt.cm. 2024010129 3600 1800 1814400 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0