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Exchange 2007 + OoO / OOF + Server is not available

08/12/10 | by HendrikWiese - Helewix.com Consultant [mail] | Categories: Microsoft, Exchange Server

Ok, this is very common these days so I thought that I will blog about it:

Using Outlook 2007 and Exchange 2007 your OOF / OoO (Out of Office) gives you a Server is not available error. Your Outlook just quits with the error stating that you should try it later again.

Below I have got a number of things that you can check to see if it resolves the issue.

1. The most common issue is Proxy settings in Internet Explorer, ensure that the proxy is DISABLED on your server and workstation side. And check if it is now working, if not continue to point number 2.

2. Open IIS and ensure that the website is started and that all IIS Services are also running

3. If your server runs .NET 1.1 you will need to ensure that it is uninstalled and that you run 2.0, if 1.1 is required for any other application, you will have to make a choice of either moving the application to another server or moving your exchange roles. Because when running you will defiantly have a problem with your website which includes your EWS and OOF / OoO.

a. To Uninstall .NET 1.1 Framework you can follow have a look at the following KB article: http://support.microsoft.com/kb/894435 (The Part after ASP.NET 2.0, 64-bit version):

b. To Disable the 32bit mode do the following: click Start > Run > type CMD and then click OK

c. Now type the following in command prompt: cscript %SYSTEMDRIVE%\inetpub\adminscripts\adsutil.vbs SET W3SVC/AppPools/Enable32bitAppOnWin64 0

d. Install ASP .NET 2.0 by running the following command: %SYSTEMROOT%\Microsoft.NET\Framework64\v2.0.50727\aspnet_regiis.exe -i

e. Now Open your Internet Information Services manager and make sure that ASP .NET 2.0.50727 is set to Allowed in the Web Service Extensions list

4. Still not working?? OK let?s try to recreate the EWS Virtual Directory in Exchange 2007 on the CAS Server. Go to the Exchange Shell on the CAS Server and type these commands in (X..... = the WebSiteName. If you are not sure what it is, then use the following command get-WebServicesVirtualDirectory):

a. Remove-WebServicesVirtualDirectory -Identity "EWS (X......)" -Confirm:$false

b. New-WebServicesVirtualDirectory

5. Does Auto Discover work? To test your Auto Discover just open your Outlook 2007 and at the bottom right, hold down your Ctrl key and right click on the Outlook Icon. Then go to Email AutoConfiguration. Type in your email address and password and take the Guessmart Points off and click the Test button. If you get the info, then this works. If not you will need to first resolve your Auto Discover issue, otherwise please continue to number 6.

6. Let?s now test the Outlook Web Service using Exchange command Shell by running the following command: Test-OutlookWebService

7. Extra KB Articles that you should consider checking out:

a. Free Busy not working: http://support.microsoft.com/kb/958934

b. Outlook 2007 Hotfix: http://support.microsoft.com/default.aspx?scid=kb;EN-US;954574

c. OOF / OoO Settings does not display: http://support.microsoft.com/default.aspx?scid=kb;EN-US;970123

Still not Resolved: Let?s have a look at you Config files:

8. First backup the original config file in \Program Files\Microsoft\Exchange Server\Client Access\Exchweb\ews\web.config and then:

a. Start > Run > type Notepad and click OK

b. Right click the file web config file in in \Program Files\Microsoft\Exchange Server\Client Access\Exchweb\ews\web.config and click edit.

c. Now click Edit and then select Replace. In the ?Find What? field type file:///%ExchangeInstallDir% and in the ?Replace With? Field type file:///C:\Program Files\Microsoft\Exchange Server\

d. Click Replace all

e. Start > Run > type IISReset /noforce

Leave a comment and let me know if this resolved your issue, if not I will do some more digging for you.

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