hosted-by.as51050.net has no MX records.
Question and response
Question
dig hosted-by.as51050.net. MX
Answer
The response has no answer records.
Authority
as51050.net. 3600 SOA ns1.h4hosting.eu. hostmaster.as51050.net. 2025090800 3600 3600 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0