� 在 base64 编码的电子邮件中

Question

我对瑞典语 + MS Outlook 有疑问。

除了 MS Outlook，它在任何地方都很好用。在 MS Outlook 中，瑞典语字符显示为 �。电子邮件内容是 base64 编码、uft-8 等。有什么问题？

附录：

这是消息：

============================================================  
Header 
============================================================ 

*** NY Beställning *** 

Ni har fått ny beställning från: FirstAccount 

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  
Beställnings-ID: FA12914-1  
Beställningsdetaljer: http://somelink
Beställningsdatum: 11/14/2011 11:16  
Önskat leveransdatum:   
Ordersedel: http://somlink 
Original: <http://somelink> 
Product: New stuff 
Product ID:   
Description:  
Qty: 11 
Job type: Release from stock

Kommenar:  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


_______________________________________________________________ 
Copyright (c) 2011 Someone

这是来源：

Return-path: <test@example.com>
Envelope-to: admin@example.com
Delivery-date: Mon, 14 Nov 2011 11:17:00 +0000
Received: from somewhere ([123.456.789.012])
        by someone.co.uk with esmtp (Exim 4.69)
        (envelope-from <test@example.com>)
        id 1RPuX1-0006sU-HG
        for admin@example.com; Mon, 14 Nov 2011 11:16:58 +0000
Received: by someone.co.ul (Postfix, from userid 33)
        id B743C4EB7F; Mon, 14 Nov 2011 11:16:52 +0000 (UTC)
To: "Admin" <admin@example.com>
Subject: Ny beställning har kommit in från ace Beställnings-ID: FA12914-1
From: test@example.com
X-Mailer: Html Mime Mail Class
MIME-Version: 1.0
Content-Type: multipart/mixed;

   boundary="=_41bea315b9b2f2301a97632f8d6c3057"
Message-Id: <20111114111652.B743C4EB7F@li214-208.members.linode.com>
Date: Mon, 14 Nov 2011 11:16:52 +0000 (UTC)
X-Spam-Status: No, score=1.4
X-Spam-Score: 14
X-Spam-Bar: +
X-Ham-Report: Spam detection software, running on the system "somewhere", has
   identified this incoming email as possible spam.  The original message
   has been attached to this so you can view it (if it isn't spam) or label
   similar future email.  If you have any questions, see
   the administrator of that system for details.
X-Spam-Flag: NO


This is a MIME encoded message.

--=_41bea315b9b2f2301a97632f8d6c3057
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: base64

PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09

PT09IA0KYWNlIA0KPT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09

PT09PT09PT09PT09PT09IA0KICAgICAgICAgICAgICAgIA0KKioqIE5ZIEJlc3TDpGxsbmluZyAq

KiogDQ........

--=_41bea315b9b2f2301a97632f8d6c3057--

Answer 1

粘贴的消息源似乎在 Content-Type: 标头中间有一个虚假的换行符。它应该是单个逻辑行；虽然也许你粘贴错了（ Received: 标题至少没有正确粘贴）。在 base64 正文部分似乎发生了类似的事情——我们在数据行之间看到了空行。

看起来像这样：

Content-Type: multipart/mixed;

boundary="=_41bea315b9b2f2301a97632f8d6c3057"

应该是：

Content-Type: multipart/mixed;
   boundary="=_41bea315b9b2f2301a97632f8d6c3057"

在“boundary”关键字前至少有一个空白字符；甚至

Content-Type: multipart/mixed; boundary="=_41bea315b9b2f2301a97632f8d6c3057"

此外，如果主题行包含 8 位数据，您应该对主题行进行 RFC2047 编码。

Subject: =?utf-8?Q?Ny_best=C3=A4llning_har_kommit_in_fr=C3=A5n_ace_Best=C3=A4llnings-ID:_FA12914-1?=

删除换行符后，正文部分中的 base64 数据看起来正确，即“Beställning”一词正确显示（尽管它不应该正确大小写；也许有一个 Swedish.stackexchange.com 来批评您的复制？:-)

X-Mailer: 标头表明您正在使用软件生成这些邮件；它可能具有正确执行这些操作的选项，但您没有使用它们。这是一个编程论坛，因此您可能应该向我们展示您的代码，并用适当的编程语言标记问题。