disable cache offline for shared folders

Configure the registry so that the Mail to keep offline setting no longer applies to shared mailboxes or public folder favorites.

  1. Exit Outlook.
  2. Start Registry Editor. To do this, use the appropriate method for your version of Windows.
      • Windows 10, Windows 8.1, and Windows 8
        • Press Windows logo key+R to open a Run dialog box. Type regedit.exe, and then press OK.
      • Windows 7
        • Click Start, type regedit.exe in the Start search box, and then press Enter.
  3. In Registry Editor, locate and then click the following subkey in the registry:
    1. HKEY_CURRENT_USER\software\Microsoft\office\16.0\outlook\cached mode
  4. On the Edit menu, click New, and then click DWORD (32-bit) Value.
  5. Type the following as a name for the new DWORD value:
    1. DisableSyncSliderForSharedMailbox
  6. Double-click the DisableSyncSliderForSharedMailbox value.
  7. In the Value Data box, type 1, and then click OK.
  8. Exit Registry Editor.

Note You can also add the DisableSyncSliderForSharedMailbox registry value in the Policies hive, as follows:

Subkey: HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\16.0\Outlook\Cached Mode

DWORD: DisableSyncSliderForSharedMailbox

Value: Integer value (Decimal) that specifies the number of months

Note Use only the following Value settings:

0 = Mail to keep offline setting affects shared mailboxes and public folder favorites

1 = Mail to keep offline setting does not affect shared mailboxes and public folder favorites