

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Exchange\Client\Options Key for 32-bit Outlook on a 64-bit version of Windows.

Key for 32-bit Outlook on a 32-bit version of Windows HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Exchange\Client\Options.Setting the DumpsterAlwaysOn registry valueĪs stated above, if you find that the “Recover Deleted Items” option is grayed out then you need to set the DumpsterAlwaysOn Registry value. You can use the DumpsterAlwaysOn registry in order to be able recover deleted items The default deleted item retention in Office 365 is 30 days.

Hard deleted items can be restored from your deleted items folder quite easily but this option is not available in certain circumstances or for certain folders, including folders in shared mailboxes. If you have hard deleted (Shift-delete) a message or mail-item from a shared mailbox you may notice that the option to recover deleted items is greyed out and you cannot select it.
