c1-2.akashield.net has no MX records.
Question and response
Question
dig c1-2.akashield.net. MX
Answer
The response has no answer records.
Authority
akashield.net. 300 SOA a1-235.akam.net. hostmaster.akashield.net. 2024056078 3600 600 604800 300
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0