Again thank Wietse and Jose about your clarification. For the control subjects, I work with your advice. But... I check with the smtpd_access_policy if the user (sasl_username) is allowed to use this sender (from).
I don't understand why, on some mail, postfix does not send the right from my script. Below is an example of an email in error. Do you see why postfix does not see the good sender and give to my script (elodie@***.fr) and not serv...@smtp.mail.taobao.com ? I've decoded the send and to UTF8 that is "Lynx Tmall <serv...@smtp.mail.taobao.com>". Bests Regards, Nathan That the smtpd_access_policy send to my script: request smtpd_access_policy helo_name aekfhwtwe queue_id 54E721AF59E sender elodie@***.fr recipient 8...@21cn.com recipient_count 1 client_address 119.189.88.156 client_name unknown reverse_client_name unknown instance 6fa5.5282d285.e sasl_method LOGIN sasl_username elodie@***.fr sasl_sender size 3313 That the mail header: Return-Path: <elodie@***.fr> Received: from aekfhwtwe (unknown [119.189.88.156]) (Authenticated sender: elodie@***.fr) by mx05.mail_server.tld (Postfix) with ESMTPA id 54E721AF59E for <8...@21cn.com>; Wed, 13 Nov 2013 02:14:45 +0100 (CET) Sender: elodie@***.fr Message-ID: <712E0F8AF1DC3F8C383E1412D1334C69@aekfhwtwe> From: =?gb2312?B?zOzDqFRtYWxs?= <serv...@smtp.mail.taobao.com> To: "³ÂÇÚ" <8...@21cn.com> Subject: =?gb2312?B?x9ewrrXEs8LH2izM1LGmsaPP1dKy09DLqzExxbajobO1z9XLxA==?= =?gb2312?B?1dvG8KOsuPzT0NX1x665pcLUo6Gyu732yMPE+sqho6y7ucTcyMPE+g==?= =?gb2312?B?16yjoQ==?= Date: Wed, 13 Nov 2013 09:14:29 +0800 MIME-Version: 1.0 Content-Type: text/html; charset="gb2312" Content-Transfer-Encoding: base64 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5512 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5512
