Emailheader und Postfix
Basierend auf den Blogpost von Daniel wollte ich meinen Postfix anweisen in Email die sensitive Informationen (Email Client IP usw.) zu bereinigen.
Beispiel:
Return-Path: <c3d2@example.net> Delivered-To: <fsteinel@example.com> Received: from server.example.com by example.com (Dovecot) with LMTP id abc1De23F4G5HIJKlMNopq for <fsteinel@example.com>; Thu, 09 Apr 2015 19:19:41 +0200 Received: from [IPv6:2a00:1828:a008:103:6883:eefe:4240:6042] (unknown [IPv6:2a00:1828:a008:103:6883:eefe:4240:6042]) (Authenticated sender: c3d2) by server.example.com (Postfix) with ESMTPSA id 12ABC3D4567 for <fsteinel@example.com>; Thu, 9 Apr 2015 19:19:41 +0200 (CEST) Message-ID: <1234A5B6.7890123@example.net> Date: Thu, 09 Apr 2015 19:19:37 +0200 From: c3d2 wiki <c3d2@example.net> User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:31.0) Gecko/20100101 Thunderbird/31.6.0 MIME-Version: 1.0 To: Herr F Steinel <fsteinel@example.com> Subject: test Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit test
Testen der Einstellungen mit
postmap -hmq - pcre:/etc/postfix/header_checks_auth.pcre < testdatei
Parameter | Erläuterung |
---|---|
-h | Enable message header query mode. |
-m | Enable MIME parsing |
-q | Search the specified maps |
- | If a key value of - is specified, the program reads key values from the standard input stream and writes one line of key value output for each key that was found. |