Host131.158.247.59.0.as39305.net has no MX records.
Question and response
Question
dig Host131.158.247.59.0.as39305.net. MX
Answer
The response has no answer records.
Authority
as39305.net. 3600 SOA dns1.as39305.net. hostmaster.as39305.net. 1 10800 3600 604800 3600
Additional
. 0 OPT ; payload 1680, xrcode 0, version 0, flags 0