cnt-grms.ec has no MX records.
Question and response
Question
dig cnt-grms.ec. MX
Answer
The response has no answer records.
Authority
cnt-grms.ec. 3600 SOA root.andinanet.net. hostmaster.andinanet.net. 2026012101 7200 604800 86400 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0