The IMAPIViewAdviseSink::OnSubmitted method notifies the form viewer that the current message has been submitted to the MAPI spooler.
See IMAPIViewAdviseSink : IUnknown.
HRESULT OnSubmitted();
None
A form object calls the IMAPIViewAdviseSink::OnSubmitted method after its call to IMAPIMessageSite::SubmitMessage has returned successfully.
After OnSubmitted is called, you can continue on the assumption that the message has been updated. Update your windows to reflect any changes that have occurred.
For more information about form notifications, see Sending and Receiving Form Notifications.
IMAPIMessageSite::SubmitMessage