關於「X-Return-Path」

jtain

有廠商反應說：由我公司寄過去的信，都會被當作廣告信，但如果是回信的就正常

他們檢查後發現是我公司寄信時的寄件人會出現異常

我檢查後發現一個現象，舉例會變成如下：

from: SpamMail@instant.com.tw

X-Return-Path: prvs=1901a27026=SpamMail@instant.com.tw

jtain

我目前檢查的結果發現在我安裝 9.6.3  之後的信都會這樣

但我使用的上一個版本 9.5.6 就不會.....無解的話，那我只能回去使用 9.5.6 了

 

這是我收到信得檔頭部份：
Return-path: <[email protected]>
Received: from [127.0.0.1]
by instant.com.tw (instant.com.tw) (MDaemon PRO v9.6.3)
with ESMTP id md50000146118.msg for <[email protected]>;
Wed, 16 Jan 2008 13:28:36 +0800
Date: Wed, 16 Jan 2008 13:28:41 +0800
From: <[email protected]>
To: [email protected]
Subject: test
Reply-To: [email protected]
Message-Id: <[email protected]>
MIME-Version: 1.0
Content-Type: text/plain; charset="BIG5"
Content-Transfer-Encoding: 8bit
X-Mailer: Becky! ver. 2.44 [tw]
X-Spam-Processed: instant.com.tw, Wed, 16 Jan 2008 13:28:36 +0800 (not processed: message from trusted or authenticated source)
X-Rcpt-To: [email protected]
X-MDRcpt-To: [email protected]
X-Return-Path: prvs=1901a27026=[email protected]
X-Envelope-From: [email protected]
X-MDaemon-Deliver-To: [email protected]
X-Antivirus: AVG for E-mail 7.5.503 [269.19.2/1224]

 

底下是MDaemon 的 log:

Wed 2008-01-16 13:28:33: ----------
Wed 2008-01-16 13:28:34: Session 2917; child 6; thread 3152
Wed 2008-01-16 13:28:34: Accepting SMTP connection from [192.168.x.xxx:4013]
Wed 2008-01-16 13:28:34: --> 220 instant.com.tw ESMTP MDaemon 9.6.3; Wed, 16 Jan 2008 13:28:34 +0800
Wed 2008-01-16 13:28:34: <-- EHLO [127.0.0.1]
Wed 2008-01-16 13:28:34: --> 250-instant.com.tw Hello [127.0.0.1], pleased to meet you
Wed 2008-01-16 13:28:34: --> 250-ETRN
Wed 2008-01-16 13:28:34: --> 250-AUTH=LOGIN
Wed 2008-01-16 13:28:34: --> 250-AUTH LOGIN CRAM-MD5
Wed 2008-01-16 13:28:34: --> 250-8BITMIME
Wed 2008-01-16 13:28:34: --> 250 SIZE 8192000
Wed 2008-01-16 13:28:34: <-- RSET
Wed 2008-01-16 13:28:34: --> 250 RSET? Well, ok.
Wed 2008-01-16 13:28:34: <-- MAIL FROM:<[email protected]>
Wed 2008-01-16 13:28:34: --> 250 <[email protected]>, Sender ok
Wed 2008-01-16 13:28:34: <-- RCPT TO:<[email protected]>
Wed 2008-01-16 13:28:34: --> 250 <[email protected]>, Recipient ok
Wed 2008-01-16 13:28:34: <-- DATA
Wed 2008-01-16 13:28:34: Creating temp file (SMTP): xxxxxxx\queues\temp\md50000011897.tmp
Wed 2008-01-16 13:28:34: --> 354 Enter mail, end with <CRLF>.<CRLF>
Wed 2008-01-16 13:28:34: Message size: 678 bytes
Wed 2008-01-16 13:28:34: Message creation successful: xxxxxxx\queues\inbound\md50000146118.msg
Wed 2008-01-16 13:28:34: --> 250 Ok, message saved <Message-ID: [email protected]>
Wed 2008-01-16 13:28:34: <-- QUIT
Wed 2008-01-16 13:28:34: --> 221 See ya in cyberspace
Wed 2008-01-16 13:28:34: SMTP session successful (Bytes in/out: 795/476)
Wed 2008-01-16 13:28:35: ----------
Wed 2008-01-16 13:28:36: Routing message (inbound queue): xxxx\queues\inbound\md50000146118.msg
Wed 2008-01-16 13:28:36: *  From: [email protected]; Recipient: [email protected]; Size: 1277; Message: xxxx\queues\local\md50000196310.msg
Wed 2008-01-16 13:28:36: *  Subject: test
Wed 2008-01-16 13:28:36: *  Message-ID: [email protected]
Wed 2008-01-16 13:28:34: ----------
Wed 2008-01-16 13:28:37: Content Filter processing xxxxxxx\local\md50000196310.msg...
Wed 2008-01-16 13:28:37: * Message return-path: prvs=1901a27026=[email protected]
Wed 2008-01-16 13:28:37: * Message from: [email protected]
Wed 2008-01-16 13:28:37: * Message to: [email protected]
Wed 2008-01-16 13:28:37: * Message subject: test
Wed 2008-01-16 13:28:37: * Message ID: <[email protected]>
Wed 2008-01-16 13:28:37: Start Content Filter results
Wed 2008-01-16 13:28:37: * Matched 0 of 28 active rules
Wed 2008-01-16 13:28:37: End of Content Filter results
Wed 2008-01-16 13:28:37: ----------
Wed 2008-01-16 13:28:38: Routing message (local queue): xxxxx\queues\local\pd50000196310.msg
Wed 2008-01-16 13:28:38: *  From: [email protected]; Recipient: [email protected]
Wed 2008-01-16 13:28:38: *  Subject: test
Wed 2008-01-16 13:28:38: *  Message-ID: <[email protected]>
Wed 2008-01-16 13:28:38: *  Size: 1277; Message: xxxxxx\md50000010491.msg

 

MarchFun

我們這裏寄出去的信也是會有 prvs=1901a27026 這類的內容，但寄出的信還沒發現什麼問題。

jtain

底下是廠商的信

 

由於貴公司發過來的信都一直被檔在垃圾信件

造成xx無法在第一時間收到您的訊息

xx向MIS部門確認後

發現在貴公司的email前面都會有一堆英數字

才被我們系統認為是垃圾信

麻煩幫忙詢問貴公司MIS部門一起解決這個問題吧

[ 本文最後由 jtain 於 2008-1-17 06:28 PM 編輯 ]

MarchFun

這是 MDaemon 最新的 Backscatter Protection 防護技術（ BATV 回信驗證），相關的文件你可以參考：

 

http://www.altn.com/Support/KnowledgeBase/KnowledgeBaseResults/?Number=KBA-01797

 

你可以試著將 Backscatter Protection 功能關閉看看。

kelvin_leung

啊~~~原來是Backscatter Protection

jtain

不好意思 「Backscatter Protection」在哪裡啊！ 很久沒有去設定參數了...

jtain

啊！找到了。 果然是這個問題，這是否意味著對方的 mail server 軟體太舊，所以會錯誤的解釋相關的訊息

MarchFun

原文由 jtain 於 2008-1-18 03:50 PM 發表 啊！找到了。果然是這個問題，這是否意味著對方的 mail server 軟體太舊，所以會錯誤的解釋相關的訊息

「就是這樣！喵！」...我本來就想跟你說應該是對方的伺服器太舊...但不好意思說...