static.as29550.net has no MX records.
Question and response
Question
dig static.as29550.net. MX
Answer
The response has no answer records.
Authority
static.as29550.net. 86400 SOA a.ns.as29550.net. hostmaster.as29550.net. 2017080907 14400 1800 1209600 86400
Additional
. 0 OPT ; payload 1680, xrcode 0, version 0, flags 0