50.115.121.4.static.westdc.net has no MX records.
Question and response
Question
dig 50.115.121.4.static.westdc.net. MX
Answer
The response has no answer records.
Authority
westdc.net. 600 SOA ns1.uk2.net. hostmaster.westdc.net. 2025120510 28800 7200 604800 600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0