读取.msg文件的属性 [英] Reading attributes of .msg file

问题描述

我正在尝试读取.msg文件以获取发件人，收件人和标题.

I am trying to read a .msg file to get the sender, recipients, and title.

我正在为我的工作场所制作此脚本，只允许安装默认的python库，因此我想使用电子邮件模块来完成此工作.

I'm making this script for my workplace where I'm only allowed to install default python libraries so I want to use the email module to do this.

在python网站上，我找到了一些使用email模块的示例. https://docs.python.org/3/library/email.examples. html

On the python website I found some examples of using the email module. https://docs.python.org/3/library/email.examples.html

在页面末尾附近讨论了如何获取发件人，主题和收件人.我已经尝试过使用如下代码:

Near the end of the page it talks about getting the sender, subject and recipient. I've tried using this code like this:

# Import the email modules we'll need
from email import policy
from email.parser import BytesParser

with open('test_email.msg', 'rb') as fp:
    msg = BytesParser(policy=policy.default).parse(fp)

# Now the header items can be accessed as a dictionary, and any non-ASCII will
# be converted to unicode:
print('To:', msg['to'])
print('From:', msg['from'])
print('Subject:', msg['subject'])

这将导致输出:

To: None
From: None
Subject: None

我检查了文件test_email.msg，它是有效的电子邮件.

I checked the file test_email.msg, it is a valid email.

当我添加一行代码

print(msg) 

我得到的电子邮件显示乱码，就像在记事本中打开.msg文件一样.

I get an output of a garbled email the same as if I opened the .msg file in notepad.

有人可以建议为什么电子邮件模块找不到正确的发件人/收件人/主题吗?

Can anybody suggest why the email module isn't finding the sender/recipient/subject correctly?

推荐答案

您显然正在尝试读取某种专有的二进制格式. Python email库不支持此功能.它仅处理传统的(基本上是文本)RFC822/RFC5322格式.

You are apparently attempting to read some sort of proprietary binary format. The Python email library does not support this; it only handles traditional (basically text) RFC822 / RFC5322 format.

要阅读Microsoft的OLE格式，您将需要第三方模块，以及一些耐心，巫毒和运气

To read Microsoft's OLE formats, you will need a third-party module, and some patience, voodoo, and luck.

根据记录，.msg没有明确的定义. Outlook对其文件使用此文件扩展名，但同时也用于其他格式的其他文件，包括传统的RFC822文件.

Also, for the record, there is no unambigious definition of .msg. Outlook uses this file extension for its files, but it is used on other files in other formats as well, including also traditional RFC822 files.

_{(第二个链接尝试链接到MSDN上的MS-OXMSG规范；但是Microsoft过去将URL视为某种可消耗的资源，当您使用它时，该资源会用完，因此该链接可能会停止如果有足够多的人点击它，则可以正常工作.)}

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