a.spf.digitalpacific.com.au has no MX records.
Question and response
Question
dig a.spf.digitalpacific.com.au. MX
Answer
The response has no answer records.
Authority
spf.digitalpacific.com.au. 10800 SOA ns1.digitalpacific.com.au. hostmaster.digitalpacific.com.au. 2020120100 28800 7200 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0