Outlook – Deleting mail from a shared mailbox

Where do emails deleted from a shared mailbox go?

When you delete emails from a shared mailbox in Outlook, the deleted items typically go to your own personal Deleted Items folder instead of the Deleted Items folder of the shared mailbox owner. This behavior is the default setting in Outlook for shared mailboxes.

However, there is a way to change this behavior and make the deleted items go to the shared mailbox’s Deleted Items folder. This can be done by modifying a Windows registry setting.

Here are the steps to change the registry setting:

1. Exit Outlook.
2. Open the Windows registry editor.
3. Navigate to the following registry key: HKEY_CURRENT_USER\Software\Microsoft\Office\<version>\Outlook\Options\General (replace <version> with the appropriate version number).
4. Create a new DWORD value by right-clicking on the Options key and selecting New > DWORD Value.
5. Name the new DWORD value DelegateWastebasketStyle.
6. Double-click on the DelegateWastebasketStyle value to open the Edit dialog.
7. Set the Value data to 4 to make deleted items go to the shared mailbox’s Deleted Items folder, or 8 to use the default deleted items folder.
8. Close the registry editor.
9. Restart Outlook for the changes to take effect.