Any ideas please, pulling my hair out.
Setup - SBS 2011 with exchange 2010.
Domain sits on a host for email purposes. (good reasons) Use a subdomain for server remote connection. Works well.
Host had autodiscovery pointed to their server for imap.
Installed office 365 (latest version)business on notebooks. Installation and connection to exchange no problem. Then the notebooks that work remotely could not connect to server exchange server. When connection was back up instead of autodiscovery to our exchange server changed to host autodiscovery.
Unlike previous versions of outlook as you know you cannot go and set the remote path.
Have changed hosts autodiscovery to point to our exchange server. Have updated the autodiscovery xml files in the users appdata outlook folder. Have removed credentials to make sure. Did remove the hosts...