vendredi 28 novembre 2014

Is it safe to remove "received" header?


Is it safe to remove "received" fields created by my mail server for all outgoing mail? For example like this (all "received" headers from my server are deleted by postfix "smtp_header"checks"):



Received: from mxfront8j.mail.yandex.net ([127.0.0.1])
by mxfront8j.mail.yandex.net with LMTP id J27O5Fv0
for <xxxx@yandex.ru>; Thu, 27 Nov 2014 20:19:02 +0300
Received: from mx-01.example.net (mx-01.example.net [x.x.x.x])
by mxfront8j.mail.yandex.net (nwsmtp/Yandex) with ESMTPS id kPMcIMmunV-J168XFhY;
Thu, 27 Nov 2014 20:19:01 +0300
(using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits))
(Client certificate not present)
X-Yandex-Front: mxfront8j.mail.yandex.net
X-Yandex-TimeMark: 1417108741
X-Yandex-Uniq: d21a5844-4df7-4e6f-b8d1-05765c0e780a
Authentication-Results: mxfront8j.mail.yandex.net; spf=pass (mxfront8j.mail.yandex.net: domain of example.com designates x.x.x.x as permitted sender) smtp.mail=postmaster@example.com; dkim=pass header.i=@example.com
From: postmaster <postmaster@example.com>
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
Subject: check
Message-Id: <0FFFD42C-6F1C-439E-8932-FFBEA45A2106@example.com>
Date: Thu, 27 Nov 2014 21:18:58 +0400
To: XXXX <xxxx@yandex.ru>
Mime-Version: 1.0
Return-Path: postmaster@example.com
X-Yandex-Forward: b32ac2efb2ec233999e4d252a85c4037

check


Safe from the spam filters and etc.



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