KMail 打开招商银行信用卡的邮件都是乱码

网络相关
1

在邮件列表里显示的标题和发件人是正常的
但打开邮件除了标题是正常的，其他都是乱码
比较诡异的是就连发件人、收件人、日期这几个字都成了乱码

Screenshot_20200229_110934
Screenshot_20200229_110934.png1057×817 221 KB

Screenshot_20200229_111033
Screenshot_20200229_111033.png1057×817 330 KB

Screenshot_20200229_112037
Screenshot_20200229_112037.png1057×817 161 KB

（显示正常的中文都是图片）

换过编码也不行
已经把中文 Windows 10 上所有字体都复制了过来
别的中文邮件就是正常的，比如

Screenshot_20200229_111655
Screenshot_20200229_111655.png1057×817 164 KB

这是怎么回事？

2

应该是中文编码惹的祸。

KMail 应该也有本地 mailbox 的，直接跳过 UI 去那个 mailbox 把那封信的文本提出来。用 file 命令去分析。

3

直接保存成.mbox 文件也是的吧？
保存后用 kate 打开开头是这些内容

From ccsvc@message.cmbchina.com Sat Feb 29 03:00:28 2020
Received: from BN3NAM04HT045.eop-NAM04.prod.protection.outlook.com
(2603:1096:202::14) by HK0PR03MB3907.apcprd03.prod.outlook.com with HTTPS via
HK2PR0302CA0004.APCPRD03.PROD.OUTLOOK.COM; Sat, 29 Feb 2020 03:01:06 +0000
Received: from BN3NAM04FT036.eop-NAM04.prod.protection.outlook.com
(10.152.92.52) by BN3NAM04HT045.eop-NAM04.prod.protection.outlook.com
(10.152.93.6) with Microsoft SMTP Server (version=TLS1_2,
cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2772.15; Sat, 29 Feb
2020 03:00:54 +0000
Authentication-Results: spf=pass (sender IP is 113.100.142.168)
smtp.mailfrom=message.cmbchina.com; outlook.com; dkim=none (message not
signed) header.d=none;outlook.com; dmarc=bestguesspass action=none
header.from=message.cmbchina.com;compauth=pass reason=109
Received-SPF: Pass (protection.outlook.com: domain of message.cmbchina.com
designates 113.100.142.168 as permitted sender)
receiver=protection.outlook.com; client-ip=113.100.142.168;
helo=mail.message.cmbchina.com;
Received: from mail.message.cmbchina.com (113.100.142.168) by
BN3NAM04FT036.mail.protection.outlook.com (10.152.93.184) with Microsoft SMTP
Server id 15.20.2772.14 via Frontend Transport; Sat, 29 Feb 2020 03:00:50
+0000
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OriginalChecksum:5D4E52083DFFB1F3B7D5730B9F3820CBDC4B9A03446B51A2C4E998CC28A3B77C;UpperCasedChecksum:1CEB89925DC63976C217CC220B5E99C0947B68036D4C2A036965F0DF72704799;SizeAsReceived:443;Count:8
Received: from server by mail.message.cmbchina.com with SMTP 29 Feb 2020 11:00:28
+0800 (CST)
From: =?gb2312?B?1dDJzNL40NDQxdPDv6g=?=ccsvc@message.cmbchina.com
Message-ID: 00152361-00003212-00000002@mail.message.cmbchina.com
To: zhangy.me@outlook.com,
Date: Sat, 29 Feb 2020 11:00:28 +0800
Content-Type: multipart/mixed;
boundary=“__=_Part_Boundary_006_016219.019983”
Subject: =?gb2312?B?w7/I1dDF08O53LzS?=
X-IncomingHeaderCount: 8
Return-Path: ccsvc@message.cmbchina.com
X-MS-Exchange-Organization-ExpirationStartTime: 29 Feb 2020 03:00:52.6918
(UTC)
X-MS-Exchange-Organization-ExpirationStartTimeReason: OriginalSubmit
X-MS-Exchange-Organization-ExpirationInterval: 1:00:00:00.0000000
X-MS-Exchange-Organization-ExpirationIntervalReason: OriginalSubmit
X-MS-Exchange-Organization-Network-Message-Id:
e74a2970-5a5b-43ee-9b3e-08d7bcc39690
X-EOPAttributedMessage: 0
X-EOPTenantAttributedMessage: 84df9e7f-e9f6-40af-b435-aaaaaaaaaaaa:0
X-MS-Exchange-Organization-MessageDirectionality: Incoming
X-Forefront-Antispam-Report: EFV:NLI;
X-MS-Exchange-Organization-AuthSource:
BN3NAM04FT036.eop-NAM04.prod.protection.outlook.com
X-MS-Exchange-Organization-AuthAs: Anonymous
X-MS-PublicTrafficType: Email
X-MS-UserLastLogonTime: 2/29/2020 2:54:51 AM
X-MS-Office365-Filtering-Correlation-Id: e74a2970-5a5b-43ee-9b3e-08d7bcc39690
X-MS-TrafficTypeDiagnostic: BN3NAM04HT045:
X-MS-Exchange-EOPDirect: true
X-Sender-IP: 113.100.142.168
X-SID-PRA: CCSVC@MESSAGE.CMBCHINA.COM
X-SID-Result: PASS
X-MS-Exchange-Organization-PCL: 2
X-MS-Exchange-AtpMessageProperties: SA|SL
X-Microsoft-Antispam: BCL:1;
X-MS-Exchange-Safelinks-Url-KeyVer: 1
X-MS-Exchange-ATPSafeLinks-Stat: 0
X-OriginatorOrg: outlook.com
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 29 Feb 2020 03:00:50.9858
(UTC)
X-MS-Exchange-CrossTenant-Network-Message-Id: e74a2970-5a5b-43ee-9b3e-08d7bcc39690
X-MS-Exchange-CrossTenant-Id: 84df9e7f-e9f6-40af-b435-aaaaaaaaaaaa
X-MS-Exchange-CrossTenant-FromEntityHeader: Internet
X-MS-Exchange-CrossTenant-RMS-PersistedConsumerOrg:
00000000-0000-0000-0000-000000000000
X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN3NAM04HT045
X-MS-Exchange-Transport-EndToEndLatency: 00:00:15.4091010
X-MS-Exchange-Processed-By-BccFoldering: 15.20.2772.006
X-Microsoft-Antispam-Mailbox-Delivery:
abwl:0;wl:0;pcwl:0;kl:0;iwl:0;ijl:0;dwl:0;dkl:0;rwl:0;ucf:0;jmr:0;ex:0;auth:1;dest:I;ENG:(5062000261)(5061607266)(5061608174)(4900115)(4920090)(6515079)(4950130)(4990090);
X-Message-Info:
5vMbyqxGkddhh69sIkKp9ni0X74jJC4hxwwqpa4ezByhVxt7hMcRmPdhX7tVeJI9q49TpjTNKvGPFDg40tegg0JZACLqLp93k4UDOMK1Z4kQURvWjCun7ztWw+mI3vjrzaSg6IbkzASz7lD+w8th9jRASmblxkCulHqb9dKqQgigVd/LrUHNmDO5tiP23QVzNTsryzknioxjczyFgomscQ==
X-Message-Delivery: Vj0xLjE7dXM9MDtsPTE7YT0xO0Q9MTtHRD0xO1NDTD0z
X-Microsoft-Antispam-Message-Info:
=?gb2312?B?VktjaEwyQUFIbDFjWDk5d0Rza2pwVlFnZTNJaG80bGtneDV0SkVQV005RWZQ?=
=?gb2312?B?Yk91azlOSjBQTmN6NE5PREI4NFdDcE9URkZCbWVxM1p3V3VGS3BaS1YyS2NX?=
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=?gb2312?B?OEJDUDJPV0xyL1ZQdlZvSkE5azJJSytXUFRBb1NxYjJlc0hLanoxbmVQMm1t?=
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MIME-Version: 1.0

–__=_Part_Boundary_006_016219.019983
Content-Type: text/html;
charset=“gb2312”
Content-Transfer-Encoding: base64

貌似是 GB2312 编码
但 KMail 切换成 GB2312 也还是乱码

4

刚刚发现如果把编码设为 Unicode（ISO-10646-UCS-2）开头倒是显示正常了（包括发件人收件人日期）
正文全乱了

Screenshot_20200229_122031
Screenshot_20200229_122031.png1057×817 315 KB

是不是这个招行的邮件模板本身有问题

5

正文是 HTML 富文本排版，自己一个 encoding

6

这样吗？

file -i --extension -z 每日信用管家.mbox
每日信用管家.mbox: application/octet-stream; charset=us-ascii

7

US ASCII 没法显示汉字

8

这个 kmail 属实垃圾，建议弃用

9

可以考虑 thunderbird 雷鸟，跟 kontact 比不差的。kontact 全家桶，bug 还是不少。占用资源也大一些。现在不用了。改用雷鸟了。

10

我感觉是这封信在头部把自己的编码说成是 ASCII，实际正文是 GB2312。你把 .mbox 里的个人信息删掉，附件发出来让我验证一下。

1赞
11

大约过年的时候，在 kde 提交了一个 kmail 账户助手不能正确添加账户的 bug，貌似到现在还没有解决～～

12

私信发了，谢谢:clap:

13

真相水落石出了：招行信用卡邮件的 HTML 富文本宣称自己是 gb2312。实际上不是，它的编码是 gb18030。

稍后可以给你写个简单的小程序处理 mbox，把标题和内容处理成 utf-8 编码。

14

感谢
不过还是不明白
那为什么把编码切换成 GB18030 也显示不了？
还有为何收件人发件人时间这几个字也是乱的，这几个字不是由 KMail 显示的吗？

15

因为这封邮件的 content 是个 base64 加密过的 html。html charset 是 gb2312，但是 HTML content 的 encoding 是 gb18030。你不解密改不了。所以你在 kmail 里选了 gb18030，解密开的 HTML 还是用 charset 指定的 gb2312 显示。还是乱码。

至于 Subject 也是这样的，“=?gb2312?B?XXXX?=“ 的意思就是说 gb2312 的 encoding，base64 加密。

这种情况是必须写程序转码的…其实代码已经做好了，就是测试时候导入新的 mbox 发现内容显示为空白。我感觉可能是同一封信里不能既出现 gb2312 encoding 又出现 utf-8 encoding。所以还需要完善。如果不导入只是要看这封信的内容，我这边已经能看到了

1赞
16

哈哈，就这样吧
知道是怎么回事就行了，不用麻烦了
要看邮件别的地方看就行