There is a way, but I can't remember how to do it. I used to have my Exchange & Outlook setup that way. Now I have to use the shit known as Lotus Notes. >-|
This has now worked.
I had to get inside the network so my new version of Outlook (that supports multiple profiles) could sort its shit out then I could add the OWA profile.
I left the network and it seemed to sync as it should. I'll find out for sure once I get home.
Yep, tethered on the train and it's synced up. Bye bye god awful OWA.