static.ip.adacor.net has no MX records.
Question and response
Question
dig static.ip.adacor.net. MX
Answer
The response has no answer records.
Authority
static.ip.adacor.net. 2560 SOA ns1.adacor.net. hostmaster.adacor.net. 2021063000 10000 1800 604800 2560
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0