Outlook 2010 in Cached Exchange Mode deployment

Connect to Microsoft Exchange Server computer, Microsoft Outlook 2010 provides two basic connection modes: Cached Exchange Mode or Online Mode.
Outlook 2010 accounts will be configured to use Cached Exchange Mode, Outlook 2010 offline address book can be together with (OAB) with, stored on users' computers from offline data files (. Ost files) in the user's local copy of Microsoft Exchange mailboxes run .Regularly update the cache from the Exchange Server computer mailbox and OAB.
Introduced in Outlook 2003 Cached Exchange Mode in order to provide users a better online and offline experience. Cached Exchange Mode allows the user to disconnect a connected environment and to switch between environments without interrupting their Outlook experience. Second, the model also allows users to use Outlook, no longer subject to network latency and connectivity issues of interference.
Instead, use the server in online mode the information directly to work. Outlook requires new information, it will request to the server and then display the information. E-mail data is only cached in memory and never written to disk.
Users can set up your account during or by changing the account settings to select the Cached Exchange Mode or Online Mode. You can also use the Office Customization Tool (OCT) or Group Policy to deploy the appropriate mode.
When to use Cached Exchange Mode
In Microsoft Outlook 2010 download, Cached Exchange Mode is the main configuration. Recommended in all cases using the model.
Although we recommend that most users use Cached Exchange Mode configuration, but for the following cases, the model is especially useful:
· Frequently connect and disconnect the portable computer users.
· Often work offline or not connected users.
· Exchange Server computer has a high latency connections (more than 500ms) of the user.
When to use the online mode
Online mode is connected to Microsoft Exchange, the old method. It is the Office Outlook 2003, Outlook 2007 and Outlook 2010 fully supported configuration. If you do not use Cached Exchange mode, online mode is useful. Here are some of examples:
· "Kiosk" situation, in this case, many users on a particular computer can access different Outlook account, and the delay will not accept e-mail downloaded to the local cache.
· Compliance of the provisions and requirements of the case of high security environment, in this case, the data may not be stored locally for any reason. In these environments, except as a potential solution Cached Exchange Mode, the proposed assessment Encrypting File System (EFS) or BitLocker.
· Large-mail, the computer does not have enough disk space to store a local copy of the mailbox.
· Large-mail (more than 25 GB), in Cached Exchange Mode, you need to consider their related performance problems.
· Outlook 2007 or Outlook 2003 to run the virtual environment or Remote Desktop Services environment. In the computer running the Remote Desktop services running Outlook 2007 or Outlook 2003, Cached Exchange Mode is not supported.
· Virtual environment running Outlook 2010 or Remote Desktop Services environment, the size of its disk or disk input / output (I / O) to the required level of restriction to prevent running Cached Exchange Mode.