69-28-32-16.cust.ptera.net has no MX records.
Question and response
Question
dig 69-28-32-16.cust.ptera.net. MX
Answer
The response has no answer records.
Authority
ptera.net. 3600 SOA a.misconfigured.powerdns.server. hostmaster.ptera.net. 2022061402 10800 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0