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Microsoft Outlook 2010: Unable to connect to server and synchronize folder errors when connecting to Exchange 2010

Jan 15

Written by:
Sun, 15 Jan 2012 10:23:34 GMT  RssIcon

When you start Microsoft Office Outlook by using a profile that includes a mailbox on a server that is running Microsoft Exchange Server 2010, you may receive the following error messages:

Cannot open your default e-mail folders.  You must connect to Microsoft Exchange with the current profile before you can synchronize your folders with your Outlook data file (.ost).

Unable to open your default e-mail folders. The information store could not be opened.

Or if you are using a cached mode profile, Outlook does not display an error. Instead, Outlook starts in the Disconnected state (the lower-right corner of the Outlook windows displays "Disconnected").

 

The reason for these types of errors usually relates to RPC Encryption on Exchange 2010. If you are using Outlook 2003 - by defualt RPC encryption is not enabled. You may also experience this problem in Outlook 2007 if you have disabled RPC encryption in the current profile.

Outlook 2003

To manually update an existing Outlook 2003 profile so that it uses RPC encryption with Exchange 2010, follow these steps:

  1. In Control Panel, open the Mail item.
  2. Click Show Profiles.
  3. Select your profile, and then click Properties.
  4. Click E-mail Accounts.
  5. Select View or change existing e-mail accounts, and then click Next.
  6. Select the Microsoft Exchange Server account, and then click Change.
  7. In the dialog box that contains your mailbox server and user name, click More Settings.
  8. In the Microsoft Exchange Server dialog box, click the Security tab.
  9. Click to select the Encrypt data between Microsoft Office Outlook and Microsoft Exchange Server check box, and then click OK.
  10. Click Next, and then click Finish.
  11. Click Close, and then click OK.

To manually create a new Outlook 2003 profile so that it uses RPC encryption with Exchange 2010, follow these steps:

  1. In Control Panel, open the Mail item.
  2. Click Add to create a new profile.
  3. Enter a name for your profile, and then click OK.
  4. In the E-mail Accounts dialog box, select Add a new e-mail account, and then click Next.
  5. On the Server Type page of the E-mail Accounts dialog box, select Microsoft Exchange Server, and then click Next.
  6. On the Exchange Server Settings page of the E-mail Accounts dialog box, enter the name of your Exchange 2010 server that has the Client Access Server role.
    Note This server may differ from the server that hosts your mailbox.
  7. Click More Settings.
  8. Click OK when you receive a "The action could not be completed" error message.
  9. In the Microsoft Exchange Server dialog box that contains the Check Name button, click Cancel.
  10. In the Microsoft Exchange Server dialog box, click the Security tab.
  11. Click to select the Encrypt data between Microsoft Office Outlook and Microsoft Exchange Server check box, and then click OK.
  12. Click Next, and then click Finish.

Outlook 2007

To manually update an existing Outlook 2007 profile so that it uses RPC encryption with Exchange 2010, follow these steps:

  1. In Control Panel, open the Mail item.
  2. Click Show Profiles.
  3. Select your profile, and then click Properties.
  4. Click E-mail Accounts.
  5. Select the Microsoft Exchange Server account, and then click Change.
  6. In the dialog box that contains your mailbox server and user name, click More Settings.
  7. In the Microsoft Exchange dialog box, click the Security tab.
  8. Click to select the Encrypt data between Microsoft Office Outlook and Microsoft Exchange check box, and then click OK.
  9. Click Next, and then click Finish.
  10. Click Close, click Close, and then click OK.

Lastly if all the Outlook clients are experiencing this error or this is a new deployment of Exchange 2010 the Microsoft Exchange RPC service may not be running.

 

The solutions provided here are adapted from Microsoft KB2006508. If none of these solutions have worked for you please do not hesitate to Contact Us and one of our engineers will be happy to resolve the problem.

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1 comments so far...


Gravatar

It's a tad long winded but works. Wish microsoft would simplify this a little.

Cheers,

Adam

By Adam Gold on   Mon, 20 Feb 2012 15:29:26 GMT

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