python开发_email_读取邮件头信息

在python中的类库中，python自带了email模块。

在email模块中，我们可以email类库实现对邮件的读取，和邮件的发送等功能。

本文先来谈谈在python中，利用email模块读取邮件头.....

先来看看一封百度云发给我的邮件：

下面是邮件的具体信息：

Date: Tue, 30 Jul 2013 16:53:17 +0800
Received: from db-sysnoc-mailrelay3.db01.baidu (unknown [123.125.66.194])
    by newmx38.qq.com (NewMx) with SMTP id
    for <hongtenzone@foxmail.com>; Tue, 30 Jul 2013 16:53:16 +0800
X-QQ-SSF: 00500000010000010rF000C1040000r
X-QQ-mid: mx38t1375174396thkz17254
Received: from mail-out.sys.baidu.com (cq01-passport-mis00.cq01.baidu.com [10.46.78.11])
    by db-sysnoc-mailrelay3.db01.baidu.com (Postfix) with SMTP id 515EF798060
    for <hongtenzone@foxmail.com>; Tue, 30 Jul 2013 16:53:16 +0800 (CST)
From: =?UTF-8?B?YmFpZHU=?=<passport@baidu.com>
To: =?UTF-8?B?aG9uZ3RlbnpvbmVAZm94bWFpbC5jb20=?=<hongtenzone@foxmail.com>
Subject: =?UTF-8?B?55m+5bqm5LqR6YCB5L2gMTAwR+WtmOWCqOepuumXtOmAmuefpQ==?=
MIME-Version: 1.0
Content-Type: text/html;
    charset="UTF-8"
Content-Transfer-Encoding: base64
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下面是我做的demo：

运行效果：

===========================================

代码部分：

===========================================

 #python mail

 import os
 import email

 #邮件文件的存放位置
 PATH = ''

 #读取文件
 def read_mail(path):
     if os.path.exists(path):
         with open(path) as fp:
             for line in fp:
                 print(line)
     else:
         not_find_file()

 #打开一个文件
 def open_file(path):
     if os.path.exists(path):
         return open(path, 'r')
     else:
         not_find_file()

 #创建消息对象
 def get_message(path):
     if os.path.exists(path):
         fp = open_file(path)
         return email.message_from_file(fp)
     else:
        not_find_file()

 #获取subject对象
 def get_subject(path):
     if os.path.exists(path):
         message = get_message(path)
         return message.get('subject')
     else:
         not_find_file()

 #解析subject对象
 def parse_subject(msg):
     if msg != None:
         subject = msg.get('subject')
         #header = email.Header.Header(subject)
         #decode_h = email.Header.decode_header(header)
         #return decode_h[0][0]
     else:
         empty_obj()

 #获取发件人邮箱
 def get_from(msg):
     if msg != None:
         return email.utils.parseaddr(msg.get("from"))[1]
     else:
         empty_obj()

 #获取收件人邮箱
 def get_to(msg):
     if msg != None:
         return email.utils.parseaddr(msg.get('to'))[1]
     else:
         empty_obj()

 #获取邮件的生成时间
 def get_date(msg):
     if msg != None:
         return email.utils.parseaddr(msg.get('date'))[1]
     else:
         empty_obj()

 #获取邮件的生成版本
 def get_mime_version(msg):
     if msg != None:
         return email.utils.parseaddr(msg.get('mime-version'))[1]
     else:
         empty_obj()

 #获取邮件的文本类型
 def get_content_type(msg):
     if msg != None:
         return email.utils.parseaddr(msg.get('content-type'))[1]
     else:
         empty_obj()

 #获取邮件的邮件的id
 def get_message_id(msg):
     if msg != None:
         return email.utils.parseaddr(msg.get('message-id'))[1]
     else:
         empty_obj()

 #文件不存在
 def not_find_file():
     print('文件不存在!')

 #msg is empty
 def empty_obj():
     print('msg is empty!')

 def main():
     global PATH
     PATH = 'E:\\test_mail.eml'
     print(PATH)
     msg = get_message(PATH)
     #print(msg)
     print('#' * 50)
     print('subject:{}'.format(get_subject(PATH)))
     print('#' * 50)
     print(parse_subject(msg))
     print('#' * 50)
     print('from:{}'.format(get_from(msg)))
     print('to:{}'.format(get_to(msg)))
     print('date:{}'.format(get_date(msg)))
     print('mime-version:{}'.format(get_mime_version(msg)))
     print('content-type:{}'.format(get_content_type(msg)))
     print('message-id:{}'.format(get_message_id(msg)))

 if __name__ == '__main__':
     main()