mailgw.eaav.gov.co has no MX records.
Question and response
Question
dig mailgw.eaav.gov.co. MX
Answer
The response has no answer records.
Authority
eaav.gov.co. 86400 SOA ns6141.hostgator.com. root.gator3071.hostgator.com. 2026030300 86400 7200 3600000 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0