SMTPD_MDA_PAUSED
if (env->sc_flags & SMTPD_MDA_PAUSED) {
env->sc_flags |= SMTPD_MDA_PAUSED;
if (!(env->sc_flags & SMTPD_MDA_PAUSED)) {
env->sc_flags &= ~SMTPD_MDA_PAUSED;
env->sc_flags |= SMTPD_MDA_PAUSED;
env->sc_flags &= ~SMTPD_MDA_PAUSED;
if (!(env->sc_flags & SMTPD_MDA_PAUSED))
(sc_flags & SMTPD_MDA_PAUSED) ? "paused" : "running");
flags |= SMTPD_MDA_PAUSED;