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About Cached Exchange Mode
Cached Exchange Mode enables a better experience when you use an Exchange account. In this mode, a copy of your mailbox is saved on your computer. This copy provides quick access to your data, and it is frequently updated with the server that runs Microsoft Exchange.
Notes:
• Cached Exchange Mode is the default when you add an Exchange or Office 365 account.
• We recommend always using Cached Exchange Mode with an Exchange or Office 365 account
Turn Cached Exchange Mode on or off
1. Click File > Account Settings > Account Settings.
2. Click the Exchange or Office 365, and then click Change.
3. Under Offline Settings, check Use Cached Exchange Mode.
4. Exit, and then restart Outlook.
If you want to turn off Cached Exchange Mode, repeat the steps, but clear Use Cached Exchange Mode.
By default, 12 months of your email is available offline, but you can control how much mail is kept offline.
Cached Exchange Mode and shared folders
By default, when Cached Exchange Mode is turned on, a local copy of shared folders is downloaded to your computer.
To change whether shared folders or Public Folders are downloaded when Cached Exchange Mode is turned on, do the following:
1. Click File > Account Settings > Account Settings.
2. Click the Exchange account, and then click Change > More Settings.
3. On the Advanced tab, under Cached Exchange Mode Settings, check the options you want.
Why isn’t the Cached Exchange Mode option available?
If the Cached Exchange Mode option is missing, one or more of the following might apply:
• An Exchange account doesn't exist in your Microsoft Outlook profile. This feature requires your Outlook profile contain an Exchange account.
POP3 and IMAP accounts can’t use this feature.
Additional information is available at: Turn on Cached Exchange Mode