host-136-27.arin.net has no MX records.
Question and response
Question
dig host-136-27.arin.net. MX
Answer
The response has no answer records.
Authority
arin.net. 3600 SOA ns1.arin.net. bind.arin.net. 2021113300 10800 600 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0