Cached Exchange Mode Sync Settings

This policy setting allows you to configure the amount (by date) of user email Outlook synchronizes locally using Cached Exchange Mode.

If you enable this policy setting, you can specify the time-window of email messages that Outlook synchronizes to users' computers. The options you can select are: 3 days, 1 week, 2 weeks, 1 month, 3 months, 6 months, 1 year, 2 years, and All.

If you disable or do not configure this policy setting, Outlook synchronizes the last 12 months of email messages to users' computers.

Supported on: At least Windows 7
Select Cached Exchange Mode sync settings for new profiles


  1. Three days
    Registry HiveHKEY_CURRENT_USER
    Registry Pathsoftware\policies\microsoft\office\16.0\outlook\cached mode
    Value Namesyncwindowsetting
    Value TypeREG_DWORD
    Value0
    Registry HiveRegistry Path:Value NameValue TypeValue
    HKEY_CURRENT_USERsoftware\policies\microsoft\office\16.0\outlook\cached modesyncwindowsettingdaysREG_DWORD3
  2. One week
    Registry HiveHKEY_CURRENT_USER
    Registry Pathsoftware\policies\microsoft\office\16.0\outlook\cached mode
    Value Namesyncwindowsetting
    Value TypeREG_DWORD
    Value0
    Registry HiveRegistry Path:Value NameValue TypeValue
    HKEY_CURRENT_USERsoftware\policies\microsoft\office\16.0\outlook\cached modesyncwindowsettingdaysREG_DWORD7
  3. Two weeks
    Registry HiveHKEY_CURRENT_USER
    Registry Pathsoftware\policies\microsoft\office\16.0\outlook\cached mode
    Value Namesyncwindowsetting
    Value TypeREG_DWORD
    Value0
    Registry HiveRegistry Path:Value NameValue TypeValue
    HKEY_CURRENT_USERsoftware\policies\microsoft\office\16.0\outlook\cached modesyncwindowsettingdaysREG_DWORD14
  4. One month
    Registry HiveHKEY_CURRENT_USER
    Registry Pathsoftware\policies\microsoft\office\16.0\outlook\cached mode
    Value Namesyncwindowsetting
    Value TypeREG_DWORD
    Value1
    Registry HiveRegistry Path:Value NameValue TypeValue
    HKEY_CURRENT_USERsoftware\policies\microsoft\office\16.0\outlook\cached modesyncwindowsettingdaysREG_DWORD0
  5. Three months
    Registry HiveHKEY_CURRENT_USER
    Registry Pathsoftware\policies\microsoft\office\16.0\outlook\cached mode
    Value Namesyncwindowsetting
    Value TypeREG_DWORD
    Value3
    Registry HiveRegistry Path:Value NameValue TypeValue
    HKEY_CURRENT_USERsoftware\policies\microsoft\office\16.0\outlook\cached modesyncwindowsettingdaysREG_DWORD0
  6. Six months
    Registry HiveHKEY_CURRENT_USER
    Registry Pathsoftware\policies\microsoft\office\16.0\outlook\cached mode
    Value Namesyncwindowsetting
    Value TypeREG_DWORD
    Value6
    Registry HiveRegistry Path:Value NameValue TypeValue
    HKEY_CURRENT_USERsoftware\policies\microsoft\office\16.0\outlook\cached modesyncwindowsettingdaysREG_DWORD0
  7. One year
    Registry HiveHKEY_CURRENT_USER
    Registry Pathsoftware\policies\microsoft\office\16.0\outlook\cached mode
    Value Namesyncwindowsetting
    Value TypeREG_DWORD
    Value12
    Registry HiveRegistry Path:Value NameValue TypeValue
    HKEY_CURRENT_USERsoftware\policies\microsoft\office\16.0\outlook\cached modesyncwindowsettingdaysREG_DWORD0
  8. Two years
    Registry HiveHKEY_CURRENT_USER
    Registry Pathsoftware\policies\microsoft\office\16.0\outlook\cached mode
    Value Namesyncwindowsetting
    Value TypeREG_DWORD
    Value24
    Registry HiveRegistry Path:Value NameValue TypeValue
    HKEY_CURRENT_USERsoftware\policies\microsoft\office\16.0\outlook\cached modesyncwindowsettingdaysREG_DWORD0
  9. All
    Registry HiveHKEY_CURRENT_USER
    Registry Pathsoftware\policies\microsoft\office\16.0\outlook\cached mode
    Value Namesyncwindowsetting
    Value TypeREG_DWORD
    Value0
    Registry HiveRegistry Path:Value NameValue TypeValue
    HKEY_CURRENT_USERsoftware\policies\microsoft\office\16.0\outlook\cached modesyncwindowsettingdaysREG_DWORD0


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Administrative Templates (Computers)

Administrative Templates (Users)