Outlook Says You’re Disconnected When You Open the Address Book

I had a case recently in which the end user couldn’t add any resource calendars to Outlook. Every time she tried, she would get this error message: “The connection to Microsoft Exchange is unavailable. Outlook must be online or connected to complete this action.” Which was curious because the Outlook status bar said it was connected and she was able to send and receive emails.

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Flawed password management model for Microsoft’s new Outlook app

Microsoft’s new Outlook for iOS and Android isn’t like other ActiveSync clients. In fact, it isn’t really an ActiveSync client at all. The actual ActiveSync client is a Microsoft-owned server that stores your username and password in order to get data from the Exchange server and then push it to the Outlook app. Why they didn’t just make a standard ActiveSync app and store the […]

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Exchange Users Unable to Connect with Outlook 2010

Over the past couple of weeks, I’ve had a rash of Exchange users who are unable to connect using Outlook. They don’t get an error message; Outlook just spins its wheels forever. If they try to set up a new Mail profile via the Control Panel app, it will connect to the server to verify the account, but then freeze trying to configure the local […]

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Fix Synchronization Errors in Outlook 2010

Actually, I’m not going to tell you how to fix them because that’s usually not necessary. I’m just going to tell you how to hide them. Frequently when an Outlook user has been upgraded from Office 2007 to Office 2010, he will begin to see messages similar to this one in his Unread Mail search folder: From: John Smith Sent: Monday, September 15, 2014 11:21 […]

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Force Outlook to use cached or online mode

You can force Outlook on a single computer to use cached or online mode without creating a group policy by setting this registry value: HKEY_CURRENT_USER\Software\Microsoft\Office\xx.0\Outlook\Cached Mode Where xx.0 is 14.0 for Outlook 2010 and 15.0 for Outlook 2013. Set this value to 1 to force cached mode or 0 to force online mode.

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Synchronization Filters

I’m not sure when you would want to use this feature, but Outlook allows you to use a filter to select what items you want to synchronize with the Exchange server. Right-click on any folder in your Exchange mailbox and select Properties. On the Synchronization tab, configure your filter as you would any other search filter in Outlook. When you click OK, Outlook will give […]

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Outlook permission errors related to resource mailboxes

Computers only do what you tell them, right? Somebody needs to have a talk with Exchange and Outlook about how they work with resource mailboxes. Every resource mailbox I configure seems to behave differently. Here are two problems I saw this week: You don’t have appropriate permission to perform this operation. Except that you do. In this case, I had created a new resource mailbox […]

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