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ajax-webmail-wmsvr37 (Coremail) ; Thu, 12 Apr 2007 12:07:48 +0800 (CST)
Date: Thu, 12 Apr 2007 12:07:48 +0800 (CST)
From: user1 <xxxxxxxx@163.com>
To: zhaowei <zhaoweikid@163.com>
Message-ID: <31571419.200911176350868321.JavaMail.root@bj163app37.163.com>
Subject: ="----=_Part_21696_28113972.1176350868319"

------=_Part_21696_28113972.1176350868319
Content-Type: text/plain; charset=gbk
Content-Transfer-Encoding: base64

ztLS0b+qyrzS1M6qysfSu7j20MfG2ru70ru0zqOs1K3AtMrH0ru49tTCtffSu7TOztLDx8/W1NrT
prjDysew67XjssXE3MjI1ebC6bezICAg
------=_Part_21696_28113972.1176350868319
Content-Type: text/html; charset=gbk
Content-Transfer-Encoding: quoted-printable

<DIV>=CE=D2=D2=D1=BF=AA=CA=BC=D2=D4=CE=AA=CA=C7=D2=BB=B8=F6=D0=C7=C6=DA=BB=
=BB=D2=BB=B4=CE=A3=AC=D4=AD=C0=B4=CA=C7=D2=BB=B8=F6=D4=C2=B5=F7=D2=BB=B4=CE=
</DIV>
<DIV>=CE=D2=C3=C7=CF=D6=D4=DA=D3=A6=B8=C3=CA=C7=B0=EB=B5=E3=B2=C5=C4=DC=C8=
=C8</DIV>
<DIV>=D5=E6=C2=E9=B7=B3</DIV>
------=_Part_21696_28113972.1176350868319--

#-*- encoding: gb2312 -*-
import email

fp = open("xxx.eml", "r")
msg = email.message_from_file(fp) # 直接文件创建message对象，这个时候也会做初步的解码
subject = msg.get("subject") # 取信件头里的subject,　也就是主题
# 下面的三行代码只是为了解码象="subject:", subject
print "from: ", email.utils.parseaddr(msg.get("from"))[1] # 取from
print "to: ", email.utils.parseaddr(msg.get("to"))[1] # 取to

fp.close()

#-*- encoding: gb2312 -*-
import email

fp = open("xxx.eml", "r")
msg = email.message_from_file(fp)

# 循环信件中的每一个mime的数据块
for par in msg.walk():
  if not par.is_multipart(): # 这里要判断是否是multipart，是的话，里面的数据是无用的，至于为什么可以了解mime相关知识。
    name = par.get_param("name") #如果是附件，这里就会取出附件的文件名
    if name:
      #有附件
      # 下面的三行代码只是为了解码象="htmlcode">

#-*- encoding: gb2312 -*-
import email
import string, sys, os, email
import time

class MailCreator:
  def __init__(self):
    # 创建邮件的message对象
    self.msg = email.Message.Message()
    self.mail = ""  
    
  def create(self, mailheader, maildata, mailattachlist=[]):
    # mailheader 是dict类型，maildata是list, 且里面第一项为纯文本类型，第二项为html.
    # mailattachlist 是list, 里面为附件文件名
    if not mailheader or not maildata:
      return
    
    for k in mailheader.keys():
      # 对subject要作特殊处理，中文要转换一下。
      # 比如 "我的一个测试邮件" 就要转换为 ="'+os.path.basename(fname)+'"')
      # 一定要把传输编码设置为base64,因为这里默认就是用的base64
      attachment.replace_header('Content-Transfer-Encoding', 'base64')
      attachment.add_header('Content-Disposition','attachment;filename="'+os.path.basename(fname)+'"')
      attach.attach(attachment)
    # 生成最终的邮件      
    self.mail = self.msg.as_string()[:-1] + attach.as_string()
    
    return self.mail

if __name__ == '__main__':
  mc = MailCreator()
  header = {'from': 'zhaowei@163.com', 'to':'weizhao@163.com', 'subject':'我的一个测试邮件'}
  data = ['plain text information', '<font color="red">html text information</font>']
  if sys.platform == 'win32':
    attach = ['c:/windows/clock.avi']
  else:
    attach = ['/bin/cp']
  
  mail = mc.create(header, data, attach)
  
  f = open("test.eml", "wb")
  f.write(mail)
  f.close()




这里我自己封装了一个类来做处理，大体的过程就是：

1. 先创建message对象： email.Message.Message()

2. 创建MIMEMultipart对象：email.MIMEMultipart.MIMEMultipart()

3. 创建各个MIMEText对象，并把他们attach到MIMEMultipart里,这里的MIMEText其实不仅仅是text, 也包括image, application, audio等等。

4. 生成最终邮件。