mail.myx.net has no MX records.
Question and response
Question
dig mail.myx.net. MX
Answer
The response has no answer records.
Authority
myx.net. 600 SOA ns1.meganameservers.eu. postmaster.meganameservers.eu. 2010062214 600 3600 3600000 600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0