On 11/05/2025 07:45, Dmitriy Alekseev via Postfix-users wrote:
You can drop received header without dedicated postfix, just do it with milter instead. Rspamd can do it for you with very small Lua script, and do SPF/DKIM/DMARC & ARC all together.
This discussion has reminded me of an option that was added in Postfix 3.10: smtpd_hide_client_session <http://www.postfix.org/postconf.5.html#smtpd_hide_client_session>
(I'm waiting for my distro to upgrade Postfix so I can try it out for myself!)
Nick.
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