yep that’s right. no email just shoots out to the login widget as a notice or you can place it any other places on the site…i think. it’s worked for me so far.
<?php if ( function_exists( 'bp_message_get_notices' ) && is_user_logged_in() ) : ?>
<?php bp_message_get_notices(); /* Site wide notices to all users */ ?>
<?php endif; ?>