odns.oktawave.com has no MX records.
Question and response
Question
dig odns.oktawave.com. MX
Answer
The response has no answer records.
Authority
odns.oktawave.com. 86400 SOA dns.oktawave.com. dns-admin.odns.oktawave.com.odns.oktawave.com. 2026030402 86400 900 86400 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0