Hello,
How to prevent Postfix to send an email with a known user from outside my
LAN if he is not authenticated ? I have the following parameters but a user
can still do it :
smtpd_helo_restrictions =
permit_mynetworks,
permit_sasl_authenticated,
#check_helo_access hash:/usr/local/etc/postfix/helo_access,
#warn_if_reject,
reject_invalid_helo_hostname,
reject_non_fqdn_hostname,
permit
smtpd_sender_restrictions =
permit_mynetworks,
permit_sasl_authenticated,
reject_non_fqdn_sender,
reject_unknown_sender_domain,
reject_unauth_pipelining,
reject_unauth_destination,
reject_unlisted_sender,
permit
smtpd_client_restrictions =
permit_mynetworks,
permit_sasl_authenticated,
reject_rbl_client cbl.abuseat.org,
reject_rbl_client zen.spamhaus.org,
permit
Regard
