ip4-spf.ventraip.com.au has no MX records.
Question and response
Question
dig ip4-spf.ventraip.com.au. MX
Answer
The response has no answer records.
Authority
ventraip.com.au. 900 SOA ns1.nexigen.digital. servers.vip-servers.com. 2026022302 3600 7200 1209600 900
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0