Both my Internal and external URL point to https://remote.mydomain.co.uk/owa/EWS/Exchange.asmx
I think this should be https://remote.mydomain.co.uk/EWS/Exchange.asmx
I also found that Basic authentication is NOT set.
Would this fix it ?
Set-WebServicesVirtualDirectory -Identity Contoso\EWS(Default Web Site)-ExternalUrl https://www.contoso.com/EWS/exchange.asmx -BasicAuthentication $true -InternalUrl https://contoso.internal.com/EWS/exchange.asmx
(is there any possibility of ANYTHING that's currently working being effected by the above Command?)