Solve issues of Outlook and Exchange 2010 mailboxes because of RPC connection

Those who work in a collaborative messaging environment of Exchange server, quite often suffer problems related to synchronization. OST files of the Microsoft Outlook application cannot be synchronized with MS-Exchange server. In Cached Exchange mode, a backup of Exchange mailbox is stored locally as an OST file. Sometimes, it happens that the OST file annoys while an attempt is made to convert it into a PST file. In such a situation, you need to convert OST file into the data of PST file manually. This is necessary for updating the content of the OST file and Exchange server mailbox. Convert OST to PST data with the help of a third party ost to pst converter tool.

“Outlook could not log on. Check to make sure you are connected to the network and are using the proper server and mailbox name. The connection to the Microsoft Exchange Server is unavailable. Outlook must be online or connected to complete this action.”

Or

“The name could not be resolved. The connection to the Microsoft Exchange Server is unavailable. Outlook must be online or connected to complete this action.”

It is not necessary that error occurs only when Exchange server is not working correctly. When above error message is received Exchange server is finely working. Above error message makes you unable to perform OST to PST conversion.

Cause:

Reasons responsible for the occurrence of above error message are as follows:

• Above error message is received because RPC encryption is required by default Exchange server 2010 RTM configuration whereas RPC encryption is not used by MS-Outlook 2003.
• When MS-Office Outlook 2007 is used and you disable the Encrypt data between Microsoft Office Outlook and Microsoft Exchange setting of profile.
• Unusable or orphaned OST file.

Resolution:

To resolve above error message you need to do below steps:

• Update the existing profiles of Outlook 2003 for RPC encryption using customized .prf file.
• Manually make your Outlook profile with RPC encryption.
• Make sure that encryption requirement on all CAS servers are disabled.
• Apply Group Policy setting for updating the existing profiles of Outlook with RPC encryption.

The above statements should help resolve the problem. However, if it remains unresolved, then probably the OST is orphaned or unusable. And, you will need to use highly-advanced conversion algorithms to effectively convert the unusable OST file to usable PST file. For this, you may use the conversion tools that are available in the market. They offer easy ost pst conversion, and feature a self-descriptive and rich graphical user interface. Such tools do not overwrite, modify, or re-index the original contents of OST file.