Exchange 2007 Free / Busy and Out of Office
Had a few problems with a recent install of Exchange 2007 where Exchange 2007 clients weren’t able to see free / busy information or set their out of office but Outlook 2003 clients were fine. Outlook 2007 uses the availability service for free / busy which is web based, as opposed to public folders with Outlook 2003.
In this case there were two problems that we had. I had to set the internal address of the Autodiscover service which tells outlook 2007 where the Availability service is.
To do this I used the following command
Set-ClientAccessServer -id server2 -AutoDiscoverServiceInternalUri "https://server2.jwarburton.home/autodiscover/autodiscover.xml"
make sure the address matches the SSL certificate name on the CAS server.
The other issue we then had was that everyone was uses a proxy server which was interfering with Outlook when it was looking for the autodiscovery service. A quick exclude for the autodiscovery URL pushed out by an AD policy resolved this.
A useful way to make sure its all working is hold down the CTRL key and right click on the Outlook icon in the task bar and you should see a new entry called test email auto configuration.