M_SPECIFIC_UID
if (bitnset(M_SPECIFIC_UID, m->m_flags))
bitnset(M_SPECIFIC_UID, m->m_flags) &&
if (bitnset(M_SPECIFIC_UID, m->m_flags))
if (bitnset(M_SPECIFIC_UID, mailer->m_flags))
if (bitnset(M_SPECIFIC_UID, mailer->m_flags))