There should be absolutely no reason that you can't add a .com.au domain name. I have many customers with aussie domains.
Are you sure there is no additional period in your <domainname>?
What version of Office 365?
There should be absolutely no reason that you can't add a .com.au domain name. I have many customers with aussie domains.
Are you sure there is no additional period in your <domainname>?
What version of Office 365?