> smtpd_sender_restrictions =
> permit_mynetworks
permit_tls_clientcerts
permit_sasl_authenticated
> reject_invalid_hostname
> reject_unknown_sender_domain
> reject_non_fqdn_sender
check_sender_access hash:/etc/postfix/block-local-sender
/etc/postfix/block-local-sender:
example.com REJECT local sender address is not allowed
someone-import...@example.com PERMIT
This is a crude way to block a local sender address in remote email.
Wietse
