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Many users of Outlook 2003 with mailboxes on an Exchange 2003 Server provided report single or together of the following error messages when they attempted to explore single or many Exchange 2010 user Calendars. 

From Exchange 2003 to Exchange 2010 we shifted mailboxes then we have begun receiving information from Exchange 2010 users that they could no longer maintain sharing catalog which they hold. 

On Exchange 2003 User did not face any problem regarding maintaining their sharing catalog.

Once an Exchange 2010 user tried to amend single or many sharing catalogs they hold, they would get the below error message.

While I tried to organize some of our user’s Meeting settings exercising the Microsoft Office Communications Server 2007 R2 Administration Tool.

Meeting settings exercising the Microsoft Office Communications Server 2007 R2 Administration Tool.

I got an error message Validation failed – Validation failed with HRESULT = 0XC3EC7E02

At the time we have begun our Exchange 2010 operation, we moved in a matter with not being capable to amend sharing catalog. I documented how to set this matter in an earlier placement. Some time ago, we have begun receiving some information from users with Exchange 2010 mailboxes that they could not amend their sharing catalog and the error message they were receiving was the similar error message we noticed at the time of us begun setting Exchange 2010.

However When a user tried to amend a sharing list they held, they would receive a “Changes to the distribution list membership cannot be saved. You do not have sufficient permission to perform this operation on this object.” The error message you can see in the below window.

At any time they tried to switch on or off my outlook the Out of Office respond saying "Your automatic reply settings cannot be displayed because the server is currently unavailable". Try again later. The error message you can see below too.

Please help in resolving this issue. I am new to outlook usage.

Why Exchange Server is Unavailable in Outlook 2007/2010?

At the time I attempted to link Microsoft Outlook 2007 or 2010 to Microsoft Exchange Server, I see the 'exchange server unavailable' error.

Server is Unavailable
 
Connecting To Microsoft Exchange Server
 
Your Microsoft Exchange Server is unavailable.
 
Why this?

I am facing an issue linking to” Exchange Server” through outlook. I am receiving the below error however at what time I attempt to associate the fresh Outlook email account in Outlook 2007 or Outlook 2010?

The connection to the Microsoft Exchange Server is unavailable. The outlook must be online or connected to complete this action.

OK

I need someone assistance please

Getting Error at the time of initializing Outlook 2007: The Add-in "Outlook Scan" could not be loaded.

Add-in "Outlook Scan" could not be loaded.

Microsoft Office Outlook

The Add-in Outlook Scan (C:\Program Files\Network Associates\VirusScan\scanemal.dll) cannot be loaded and has been disabled by Outlook. Please contact the Add-in manufacturer for an update. If no update is available please uninstall the Add-in.

OK

What should I do now? What are the causes for this error so that I will avoid doing that next time? Please help as soon as possible.

The error message showed at the time of my attempt to configure 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. How I can resolve these errors please help me?

Microsoft Office Outlook

Your Out of Office settings cannot be displayed, because the server is currently unavailable.

Try again later.

OK

I received the error message at the time of starting “OUTLOOK”

“Outlook could not create the work file. Check the temp environment variable.”

Where I can locate these variables and what exactly should I verify?

Why did this happen?

These methods can habitually be placed for different causes. U3 and additional jump-drive software are large amount ordinary reasons. Western Digital for example ships/shipped their WD identification sequence of outside USB-drives with WD Sync to simply synchronize several PCs through the outside drive. Exercising the “Secure Browsing” attribute of WDSync will transform the cache up-and-down.