Out of Office Setting in outlook

Asked By 10 points N/A Posted on -

Unable to configure Out of Office Assistant in Outlook 2007/2010 on Exchange Server 2007/2010

The below error message is showed at the time of attempt to build up Out of Office Assistant in Microsoft Office Outlook 2007 or Microsoft Office Outlook 2010 on a Microsoft Exchange Server 2007 or Microsoft Exchange Server 2010.

Your out of Office settings cannot be displayed, because the server is currently unviable. Try again Later.


Best Answer by Caldwell Llanos
Answered By 0 points N/A #153297

Out of Office Setting in outlook


This problem could be occurred if you client computer doesn’t have the configuration of a default gateway. You have to add the DWORD value in the DEfConnectOpts registry.

  1. Start-Run-Type regedit and press Enter.
  2. Locate the following key and click the subkey:

        HKEY_CURRENT_USERSoftwareMicrosoftOffice12.0OutlookRPC (Outlook 7)

HKEY_CURRENT_USERSoftwareMicrosoftOffice14.0OutlookRPC (Outlook 10)

  1. Select New from the edit Menu and click DWORD value.
  2. Then Type DefConnectOpts and press Enter.
  3. Right click DefConnectOpts and click Modify.
  4. Type 0 in the value data box and click OK.
  5. Exit Registry Editor.
Best Answer
Best Answer
Answered By 0 points N/A #153298

Out of Office Setting in outlook


Hi Miller,

Microsoft found out that CAS plays a big part of this issue. They mentioned that there is a possibility that you might have different credentials used between your windows logon and mailbox credentials. That is, CAS is responsible for opening up your mailbox using credentials acquired from windows. So when CAS and Mailbox credentials do not match this will return an authentication error and hence no other authentication will be made. For now, you may try to apply MS’s hotfix. After which you need to enable this hotfix from your registry. Follow steps below.

After you apply the hotfix package, follow these steps to enable the hotfix:

1. Click Start, click Run, type regedit in the Open box, and then click OK.

2. Locate and then click the following registry subkey: 


3. On the Edit menu, point to New, and then click DWORD (32-bit) Value.

4. Type WinhttpAuth, and then press ENTER.

5. In the Details pane, right-click WinhttpAuth, and then click Modify.

6. In the Value data box, type 1, and then click OK.

7. Exit Registry Editor.

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