Hi Neo
OK, I have created the gavin@bizserv.onmicrosoft.com account and can confirm that it works fine including Outlook configuration with Autodiscover. I have now removed the gavin@bizserv.co.za alias from the gavin.thompson@bizserv.co.za and changed the new account to now be gavin@bizserv.co.za. I will leave it for the rest of the evening and then re-test the account tomorrow morning.
Thanks for your assistance
Gavin