ENHSCN_RPOOL
to->q_status = ENHSCN_RPOOL(enhsc, smtptodsn(r), e->e_rpool);
to->q_status = ENHSCN_RPOOL(enhsc, "5.1.1", e->e_rpool);
to->q_status = ENHSCN_RPOOL(enhsc, "5.1.6", e->e_rpool);
to->q_status = ENHSCN_RPOOL(enhsc, "5.1.3", e->e_rpool);