Need to fix 5 Common Errors of Outlook

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Need to fix 5 Common Errors of Outlook:

  1. “Cannot open your default e-mail folders. The information store could not be opened. ”
  2. “Your Microsoft Exchange Server is unavailable. ”
  3. Office Outlook will not open personal folders or personal folders do not show up in Outlook.
  4. “The action cannot be completed. The connection to the Microsoft Exchange Server is unavailable. Your network adapter does not have a default gateway” or “Your Microsoft Exchange Server is unavailable”.
  5. None of the authentication methods supported by this client are supported by your server.

The above stated error messages with respect to Outlook are very familiar to me as I'm encountering with it very often.

Though, need your kind suggestions and help over this issue.

Appreciated. 

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Answered By 0 points N/A #156844

Need to fix 5 Common Errors of Outlook

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Hello Jai,

In answer to your first question as to why Microsoft Outlook cannot open email folders, it is due to some of the following reasons:

  • The OST file is corrupted and experiencing some errors that make it unrecognizable. OST files are the offline folders that enable the user to work even offline. Therefore you need to find that OST file using the SEARCH function in Windows. Use the Advance Exchange Recovery so you can scan the file and recover the data, by doing so you can also save it into a PST file.

  • Or you can also locate the Outlook.exe by going to the destination folder. Right click Outlook.exe and go to “Properties.” Look for the Compatibility tab. Run the program in compatibility mode. Click OK. Start Outlook again.

As to your second question, this is caused mainly by disabling the Encrypt data between Microsoft Office Outlook and Microsoft Exchange.

  • Disabling the encryption requirement on all CAS servers may solve this problem, or you can try updating manually or creating your Outlook profile with RPC encryption.

To do this, go to the Control Panel, click on “Open mail item” then click “Show Profiles”. Choose your profile. Go to “Properties” and click “E-mail Accounts”. Select “View or change existing e-mail accounts” then click “Next” and go to your Microsoft Exchange Server account. Click “Change” then “More Settings”. Go to the Security tab “Encrypt data between Microsoft Office Outlook and Microsoft Exchange Server” check box and click OK.

You third problem can easily be solved by repairing your PST file.

  • Open Scanpst.exe utility. It is included in the default with Outlook. Go to Microsoft Office Office12 or Program Files and click on “Common Files” then click “System” then “Mapi” choose “1033”. Open Utility and find the location of your PST file by clicking the browse button. Start the Scan and click the Repair button after getting a report.

Your fourth problem may caused if your Outlook profile is automatically configured.

If you’re using Outlook 2007 then click “Start” then “Run”. Type "regedit" in the field and click OK. Locate and click the following sub key “HKEY_CURRENT_USERSoftwareMicrosoftOffice12.0OutlookRPC”. Once you're on the Edit Menu, click “New” then click “DWORD Value”. Type “DefConnectOpts” and click “Enter”. Right click “DefConnectOpts” and choose “Modify”. Type 0 in the Value data box, click OK and then “Exit Registry”.

In answer to your fifth question, check for any folders that have been moved to the outbox. Remove the folders from the outbox.

  • Another solution is to check the option in advanced settings for "Log onto incoming mail server before sending mail".

  • If you are using Outlook 2010 then make sure the password authentication is not enabled for incoming server. If none of this works then use the following procedure.

  • Open Outlook. Go to Account settings and select your email account. Verify that the email you're working on and the server settings are accurate and exact according to your provider. Click “More Settings” then click “Advanced “. Check if the outgoing port is 25 or 26. Find the "Use the following type of encrypted connection" and select NONE then click OK.

Hope this helps.

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