python2.7實現(xiàn)郵件發(fā)送功能

更新時間：2018年12月12日 11:11:05 作者：Lockeyi

這篇文章主要為大家詳細介紹了python2.7實現(xiàn)郵件發(fā)送功能包，含文本、附件、正文圖片等，具有一定的參考價值，感興趣的小伙伴們可以參考一下

要想實現(xiàn)一個能夠發(fā)送帶有文本、圖片、附件的python程序，首先要熟悉兩大模塊：

email以及smtplib

然后對于MIME（郵件擴展）要有一定認知，因為有了擴展才能發(fā)送附件以及圖片這些媒體或者非文本信息

最后一個比較細節(jié)的方法就是MIMEMultipart，要理解其用法以及對應參數(shù)所實現(xiàn)的功能區(qū)別

發(fā)送郵件三部曲：

創(chuàng)建協(xié)議對象
連接郵件服務器
登陸并發(fā)送郵件

from email.header import Header
from email.mime.base import MIMEBase
from email.mime.text import MIMEText
import mimetypes

from email.mime.multipart import MIMEMultipart
import os
import smtplib

from email import Encoders as email_encoders


class Message(object):
 def __init__(self, from_addr, to_addr, subject="", html="", text=None, cc_addr=[], attachment=[]):

  self.from_addr = from_addr
  self.subject = subject

  if to_addr:
   if isinstance(to_addr, list):
    self.to_addr = to_addr
   else:
    self.to_addr = [d for d in to_addr.split(',')]
  else:
   self.to_addr = []

  if cc_addr:
   if isinstance(cc_addr, list):
    self.cc_addr = cc_addr
   else:
    self.cc_addr = [d for d in cc_addr.split(',')]
  else:
   self.cc_addr = []

  if html is not None:
   self.body = html
   self.body_type = "html"
  else:
   self.body = text
   self.body_type = "plain"

  self.parts = []
  if isinstance(attachment, list):
   for file in attachment:
    self.add_attachment(file)

 def add_attachment(self, file_path, mimetype=None):
  """
   If *mimetype* is not specified an attempt to guess it is made. If nothing
   is guessed then `application/octet-stream` is used.
  """
  if not mimetype:
   mimetype, _ = mimetypes.guess_type(file_path)

  if mimetype is None:
   mimetype = 'application/octet-stream'

  type_maj, type_min = mimetype.split('/')
  with open(file_path, 'rb') as fh:
   part_data = fh.read()

   part = MIMEBase(type_maj, type_min)
   part.set_payload(part_data)
   email_encoders.encode_base64(part)

   part_filename = os.path.basename(file_path)
   part.add_header('Content-Disposition', 'attachment; filename="%s"'
       % part_filename)
   part.add_header('Content-ID', part_filename)

   self.parts.append(part)

 def __to_mime_message(self):
  """Returns the message as
  :py:class:`email.mime.multipart.MIMEMultipart`."""

  ## To get the message work in iOS, you need use multipart/related, not the multipart/alternative
  msg = MIMEMultipart('related')
  msg['Subject'] = self.subject
  msg['From'] = self.from_addr
  msg['To'] = ','.join(self.to_addr)

  if len(self.cc_addr) > 0:
   msg['CC'] = ','.join(self.cc_addr)

  body = MIMEText(self.body, self.body_type)
  msg.attach(body)

  # Add Attachment
  for part in self.parts:
   msg.attach(part)

  return msg

 def send(self, smtp_server='localhost'):

  smtp = smtplib.SMTP()
  smtp.connect(smtp_server)
  smtp.sendmail(from_addr=self.from_addr, to_addrs=self.to_addr + self.cc_addr, msg=self.__to_mime_message().as_string())
  smtp.close()

對于實際發(fā)送程序，要注意個參數(shù)的類型，比如from_addr是字符串，to_addr和cc_addr以及attachment都是列表

from mail_base import Message
import datetime
from_addr = 'xxx'
mail_to = 'xxx'


def send_go():
 time_now = datetime.datetime.now().strftime('%Y-%m-%d %H:%M')
 attach_files = ['testcsv.xlsm','test1.jpg','test2.jpg','test3.jpg']
 mail_msg = """
  <p>Hi Lockey:</p>
  <p><img src="cid:test1.jpg"></p>####要特別注意這里，正文插入圖片的特殊格式?。?！
  <hr/>
  <p style="text-indent:16px">Here is the latest paper link from The Economist, you can click <a  rel="external nofollow" >Go</a> for a full view!</p>
  <hr/>
  <p>Best Regards</p>
  <p>
   Any question please mail to <a href='mailto:iooiooi23@163.com'>Lockey23</a>.
  </p>
  <p>Sent at {} PST</p>
  """.format(time_now)
 subject = '[Halo] - ' + 'A new paper published!'
 msg = Message(from_addr=from_addr,
     to_addr=[mail_to],
     cc_addr=[mail_to],
     subject=subject,
     attachment=attach_files,
     html=mail_msg
     )
 msg.send()

if __name__ == '__main__':
 send_go()

對于測試程序我們命名為sendGo.py，運行測試程序