Tag Archives: cached mode

Outlook – Disable Cached Mode with Group Policy

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KB ID 0000507

Problem

I got asked how to do this today, a client has a number of roaming users (teachers) who don’t like waiting for Outlook to create a local copy of the mailbox each time they log on. To be honest as they have Exchange 2010 they would be better using the feature rich Outlook Web App (OWA) rather than the full client if they need to move around so much but hey, I was asked.

Solution

1. To do this you need to use a custom administrative template, thankfully Microsoft have them pre written go here to down load the administrative templates.

2. Download and extract the templates to your domain controller. Start > Administrative tools > Group Policy management console > either create a new policy and link it to your USERS or edit an existing policy.

3. Navigate to:

[box] User Configuration > Policies > Administrative Templates [/box]

Right click > Add/Remove Templates.

4. Add > Navigate to the folder where you extracted the templates > ADM folder > en-us folder (change depending on your locale) > Outlk14.adm > Open.

5. Now Navigate to:

[box] User Configuration > Policies > Administrative Templates > Classic Administrative Templates > Microsoft Outlook 2010 > Account Settings > Exchange > Cached Exchange Mode [/box]

Locate “Use Cached Exchange Mode for new and existing Outlook Profiles”

6. Set the policy to “Disabled” > Apply OK > Close the policy editor.

7. Then get the clients to log off and back on again, wait a couple of hours, or manually run “gpupdate /force” on them.

 

Related Articles, References, Credits, or External Links

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Outlook Web App 2013 – Offline Mode

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KB ID 0000727 

Problem

A great new feature of OWA 2013 is the ability to run in ‘Offline mode’. This runs in the same manner as Microsoft Outlook’s ‘Cached Mode’ which has been built into full Outlook since version 2003.

There are a few caveats before you can get it to work;

Requirements for OWA Offline Mode

1. A compatible browser (Internet Explorer 10, Chrome 18, or Safari 5.1). source
2. You have to be connecting to OWA being hosted on an Exchange 2013 CAS server.
3. Your mailbox needs to be hosted on an Exchange 2013 Mailbox server.

Capabilities of OWA Offline Mode

1. While you are in offline mode, you can open OWA, read and reply to emails, send new emails, respond to meeting requests, view your calendar, view and edit your contacts.

Note: Obviously all sent and updated data will not be sent to recipients, or changes reflected in Exchange until you are no longer in offline mode.

2. The system will only cache data for the past month and calendar entries for the next twelve months.

3. Contact information for recently used recipients will also be cached.

Disadvantages of OWA Offline Mode

1. A prolonged period in cached mode can cause scheduled events in your calendar to stop working. (Its only designed for users to be sporadically disconnected).

2. You cannot access Archived folders.

3. With the exception of the Inbox, Sent Items, Calendar, and Drafts items folder, only folders you have accessed will be cached.

Solution

1. Whilst online and connected to OWA > Settings > Use mail offline.

2. For security reasons you will be asked if you are on a public computer > Prompted to add the URL to favorites (or bookmarks depending on the browser).

Note: DO NOT use this feature on a shared or public computer, the cache is accessible from other user accounts on the machine.

3. In this example I’m using IE10 > Just for ease I’m enabling the Favorites bar to see the shortcut.

4. Depending on the size of the mailbox and speed of connection, it may take a while to syncronise. Whilst offline OWA will display the time it last connected to Exchange, and while you are working offline if you send any mail it will keep a track of pending options for next time you are online.

Internet Explorer 10 Caches and Databases

The whole system works because the supported browsers have the ability to cache information locally, to see where that’s being set in IE10, Internet Options > General > Browsing Data > Settings > Caches and Databases.

Related Articles, References, Credits, or External Links

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