OK, I'm using SMTP with TLS, and I'd like to eliminate part of the header it generates;
Received: from system (ip-address [1.2.3.4]) (using TLSv1 with cipher RC4-MD5 (128/128 bits)) (No client certificate requested) by mail.some.serverdomain (Postfix) with ESMTPSA id 75F61CA22F for <jul...@gmail.com>; Mon, 18 May 2009 14:35:22 +0200 (CEST) should become Received: from system (ip-address [1.2.3.4]) (using TLSv1 with cipher RC4-MD5 (128/128 bits)) by mail.some.serverdomain (Postfix) with ESMTPSA id 75F61CA22F for <jul...@gmail.com>; Mon, 18 May 2009 14:35:22 +0200 (CEST) I'm already using smtpd_sasl_athenticated_header = no but I was wondering how to best remove the client certificate mention. I'm already using maps/header_checks for some other header-removal stuff, but this is a hard one. Anyone who has already done this using REPLACE or something? Thanks, Julius