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smtpd_recipient_restrictions = check_recipient_access hash:/usr/local/etc/postfix/protected_destinations, permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination smtpd_restriction_classes = lsp_only, pzp_only lsp_only = check_sender_access hash:/usr/local/etc/postfix/lsp_only, reject pzp_only = check_sender_access hash:/usr/local/etc/postfix/pzp_only, reject
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# cat /usr/local/etc/postfix/protected_destinations [email protected] lsp_only [email protected] pzp_only # cat /usr/local/etc/postfix/lsp_only [email protected] OK [email protected] OK [email protected] OK # cat /usr/local/etc/postfix/pzp_only [email protected] OK [email protected] OK