Ensure that the below endpoints and ports are open for Medilink. Note
Helpdesk:
help.medilink.com.au 80/443
medilinkdirectsupport.freshworks.com 80/443
Healthlink:
connections.hms.au1www1.healthlink.net 80/443
edi.hms.au1www1.healthlink.net 80/443
updates.hms.au1www1.healthlink.net 80/443
Medical Objects
202.44.75.84 2011
morpheus.medical-objects.com.au 2011
MO suggests port 443 be open outbound more generally, and states that each install will have a fourth TCP Outbound Port and IP that will vary with your install token.
Fetch Pathology:
(Douglass Hanly Moir, Sullivan Nicolaides, Clinpath, etc)
Fetch suggestes port 443 be open outbound more generally, although you may be able to review contact support to obtain specifics.