Re: [postfix-users] blacklist nur von extern

smtpd_helo_required = no

Nein?

smtpd_recipient_restrictions = permit_mynetworks,reject_unauth_destination smtpd_sender_restrictions = hash:/etc/postfix/access

Also offengestanden sehe ich da nirgendwo eine RBL

Warum denn nicht ganz simplistisch: smtpd_recipient_restrictions = permit_mynetworks, reject_unauth_destination, reject_rbl_client zen.spamhaus.org