epm.net.co has no MX records.
Question and response
Question
dig epm.net.co. MX
Answer
The response has no answer records.
Authority
epm.net.co. 3600 SOA lauta.epm.net.co. root.epm.net.co. 2025032203 7200 3600 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0