instance66459.waicore.network has no MX records.
Question and response
Question
dig instance66459.waicore.network. MX
Answer
The response has no answer records.
Authority
waicore.network. 1800 SOA fiona.ns.cloudflare.com. dns.cloudflare.com. 2394409114 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0