KOLO-HE2-CORE-NET.kolo.net has no MX records.
Question and response
Question
dig KOLO-HE2-CORE-NET.kolo.net. MX
Answer
The response has no answer records.
Authority
kolo.net. 300 SOA ns.kolo.net. hostmaster.kolo.net. 2025120801 5400 900 1209600 300
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0