Required Status Row Properties for Remote Transports
Remote transport providers must supply the following properties when their initial row in the MAPI status table is created:
PR_DISPLAY_NAME
PR_HEADER_FOLDER_ENTRYID
PR_REMOTE_PROGRESS
PR_REMOTE_VALIDATE_OK
PR_RESOURCE_METHODS
PR_RESOURCE_PATH
PR_PROVIDER_DISPLAY
PR_STATUS_CODE
PR_STATUS_STRING