ptr.liveoakfiber.net has no MX records.
Question and response
Question
dig ptr.liveoakfiber.net. MX
Answer
The response has no answer records.
Authority
ptr.liveoakfiber.net. 3600 SOA ns1-ga-a.liveoakfiber.net. admin.liveoakfiber.net. 2025071000 7200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0