cispns1.byteheavy.com has no MX records.
Question and response
Question
dig cispns1.byteheavy.com. MX
Answer
The response has no answer records.
Authority
byteheavy.com. 86400 SOA ns1.he.net. hostmaster.he.net. 2025102401 10800 1800 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0