Robtex

Up: 203.14.228.0/22
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Down left: 203.14.228.0/24
Down right: 203.14.229.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.14.228.8	A+PTR	mailrelay.monashhealth.com
203.14.228.8	A+PTR	mailrelay.monashhealth.org
203.14.228.8	A+PTR	mailrelay.monashhealth.org.au
203.14.228.9	PTR	mailrelay2.monashhealth.org
203.14.228.9	PTR	spamportal.monashhealth.org