There is a simple anti-relay fix for 8.8 .mc files at http://www.sendmail.org/antispam.html -- Rex McMaster rex@mcmaster.wattle.id.au http://www.compsoft.com.au/~rmcm/pgp-pk Brian de Alwis writes: > How do I configure sendmail to disallow relaying mail that is neither to > nor from a machine in my domain? >