What I want to achieve now is to ONLY allow authenticated clients (via SASL) to send to the fax email address...
How can this be achieved? --------------------------------------------------- In my master.cf I have the following- fax unix - n n - 1 pipe flags= user=uucp argv=/usr/local/bin/faxmail -d -n ${user} In my main.cf I have the following- smtpd_recipient_restrictions = reject_invalid_hostname, reject_non_fqdn_sender, reject_non_fqdn_recipient, reject_unknown_sender_domain, reject_unauth_pipelining, permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination, reject_rbl_client zen.spamhaus.org, reject_rbl_client bl.spamcop.net, permit I did also have- reject_unknown_recipient_domain, however this conflicted with messages to the 'fax' handler. How can I reinstate 'reject_unknown_recipient_domain' for all mail except the fax handler?