cp1.inocweb.com has no MX records.
Question and response
Question
dig cp1.inocweb.com. MX
Answer
The response has no answer records.
Authority
inocweb.com. 3600 SOA ns0.inoc.net. hostmaster.inoc.net. 2024091704 3600 900 2419200 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0