ns2.webipdns.com.au has no MX records.
Question and response
Question
dig ns2.webipdns.com.au. MX
Answer
The response has no answer records.
Authority
webipdns.com.au. 86400 SOA edns1.ultradns.com. premiumdns.support.neustar. 2019111988 28800 7200 1209600 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0