mx.sccoast.net has no MX records.
Question and response
Question
dig mx.sccoast.net. MX
Answer
The response has no answer records.
Authority
sccoast.net. 3600 SOA dns1.sccoast.net. abuse.htcinc.net. 2024072500 900 60 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0