To do this, follow these steps: In Windows Explorer, locate the folder that contains the Application Host.config file that is associated with the Web site, or locate the virtual directories or the application directories that contain the Web.config file that is associated with the Web site.(In my case it was IIS-OAB) Note The Web.config file may not be in the virtual directories or the application directories in IIS. In the Enter the object names to select box, type is a placeholder for the computer name.–For Instructions for Outlook 2007 –For Instructions for Outlook 2011 –For Common errors and troubleshooting Step 2: Uncheck the box next to Download changes since last Send/Receive.In the Information to download section, select Full Details and in the Address Book section, choose \Global Address List. **NOTE** Please read this section carefully, or your update will not work!!If you are using Outlook 2003 or 2007 you may be in "Cached Mode", and you are looking at a copy called the "Offline address book" This only gets updated Every 24 hours, and the copy on the server only gets updated every 24 hours at (by default).In addition to this there a a few methods by which your Outlook clients get the offline address book.*Note: Unless you are NOT in cached mode.Here, internal domain is (root domain of AD forest).So, for internal users the domain name to access outlook on the web can be mail.and we can use same domain name for Internet users as well.
Now copy the link and add /and paste in explorer i.e https://webmail.uk/OAB/7cf12789-0f60-4c83-9f24-c42637ca00e8/The webpage should contain lots of XML data.
If you don’t see the xml data check the install location if the xml exists i.e: C:\Program Files\Microsoft\Exchange Server\V14\Client Access\OABcf12789-0f60-4c83-9f24-c42637ca00e8\If exists, try server localhost in Explorer i.e: https://glob-srv-cas3uk/OAB/7cf12789-0f60-4c83-9f24-c42637ca00e8/If you get Error message when you visit a Web site that is hosted on IIS 7.0: “HTTP Error 500.19 – Internal Server Error” then check the KB942055 ( for error code and resolution.
In my error I was getting HRESULT: 0x80070005 and the fix was I used the Ref: Grant the Read permission to the IIS_IUSRS group for the Application Host.config file or for the Web.config file.
Even in this situation, you need to follow these steps. Click to select the Read check box, and then click OK.
Right-click the folder that contains the Application Host.config file, or right-click the virtual or application directories that may contain the Web.config file. In the Properties dialog box for the folder, click OK.