Question : Out of Office Exchange 2007 - Server Not Available

Hi all,

Been battling with a problem where Out of Office Assistant does not fire up on Outlook 2007 clients on my 2008SBS domain.

During my research I found a thread on another forum where a guy had exactly the same problem as me and he eventually found the cure himself.  The frustrating thing is that his description of what he did to fix it doesn't make sense when I try to follow his steps so was wondering if someone could get a grasp of what he meant and translate it into Server 2008 SBS steps please....

He said:

Okay...this is embarasing!

It was something that I checked but "took my glasses off" - apparently.

On the Virtual Directories within IIS if you go to Properties and then
Directory Security and then go to the Secure Communications area and click
on Edit... button you need to make sure that the "Ignore Client
Certificates" radio button is selected -AND NOT- "Accept Client
Certificates".

This came from opening up
https://mail.mydomain.com/autodiscover/autodiscover.xml and getting that
prompt that I mentined about a 'select a certificate' - but there was no
certificate to choose!  I simply hit okay and then put in the credentials.
Well, when I did this with MS-PSS he knew exactly what the issue was....

 
Many thanks

Adam

Answer : Out of Office Exchange 2007 - Server Not Available

Since you are using an SBS server the EWS virtual Directory should be under SBS Web Applications not under EWS.
And also, there is a problem with the Autodiscover Virtual Directory.
So you have to go for Removal of Virtual Directories. Now in your case, since EWS is in Default Web Site, make sure you run the following command to remove the EWS from Default website and to recreate it in SBS Web Applications.

Remove the directories.
Remove-AutodiscoverVirtualDirectory -Identity "CAS_Server_Name\Autodiscover (SBS Web Applications)"
Remove-WebServicesVirtualDirectory -Identity "CAS_Server_Name\EWS (Default Web Site)"

Recreate the Directories.
New-AutodiscoverVirtualDirectory -WebSitename "SBS Web Applications"
New-WebServicesVirtualDirectory -WebSitename "SBS Web Applications"

Please try this, and please dont enable the kernal Mode Authentication, we dont required that. Disable the Kernal Mode Authentication from Autodiscover/ EWS and OAB.

After removing and recreating it, please follow the kb- 940726 once again to set the InternalUri and also please make sure that you have the SCP url listen the internal DNS.

And also make sure that you having the following authentication in this 3 directories.
Autodiscover :- Basic + Windows Integrated + SSL Enabled.
EWS :- Windows Integrated = No SSL.
OAB:- Windows Integrated = No SSL.

Please try this settings on the server now and please revert back if you have any issues.