It will work, but two things make it hard to set up an @riverland.net.au email account on a phone or i-device:
Apart from those, use the generic account settings.
MacOS 10.10 Mail app: Setting up the Mac Mail app for a riverland.net.au account
iPad, iOS 6.1: ipad email setup instructions
iPhone: Apple help page to add an email account. Must enter the settings manually. Set the outgoing server port to 465.