def send_mail(subject, message, from_email, recipient_list,
       fail_silently=False, auth_user=None, auth_password=None,
       connection=None, html_message=None):
  pass     
  
      
def send_mass_mail(datatuple, fail_silently=False, auth_user=None,
          auth_password=None, connection=None):
  pass

# 參數(shù)介紹  
# subject: 郵件主題 
# message: 郵件內(nèi)容 
# from_email: 發(fā)件人 
# recipient_list: 收件人，這是一個列表，可以有多個收件人 
# 以上4個在參數(shù) 在send_mass_mail中，會寫在datatuple這個元組中 
# fail_silently: 是否報錯，True的話表忽略異常 
# auth_user&auth_password:賬號密碼 
# connection: 表示這個的鏈接對象，后續(xù)會提到 
# html_message: send_mail方法獨有，可以比較簡單地實現(xiàn)一個html文本的傳輸，具體我也沒使用過，不是很了解。

# settings.py
# 我使用的是新浪的，host可以在對應(yīng)郵箱的設(shè)置中找到
EMAIL_HOST = 'smtp.sina.com'
EMAIL_PORT = 25
# 你的郵箱賬號與密碼
EMAIL_HOST_USER = 'viptestfordjango@sina.com'
EMAIL_HOST_PASSWORD = '******'
# 由于使用25端口，一般都不使用TLS機密，SSL和TSL只需要設(shè)置一個，他們同時為True或False
EMAIL_USE_TLS = False
# 發(fā)件人，只有這個變量名可以自己自定義，設(shè)置在這里是為了減少每次去寫
EMAIL_FROM = 'viptestfordjango@sina.com'

from django.core.mail import send_mail, send_mass_mail
from string import lowercase,uppercase,digits
from random import randint
from project.settings import EMAIL_FROM
def send_code_email(email)：
  """
  發(fā)送驗證碼
  """
  # 0-9 a-z A-z
  code = ''
  seeds= lowercase+uppercase+digits
  length = len(seeds)
  # 生成4位驗證碼
  for i in range(4):
    code += seeds[randint(0, length-1)]
  send_title = '重置密碼'
  send_message = '你的驗證碼是:{0}。'.format(code)
  send_status = send_mail(email_title, email_body, EMAIL_FROM, [email])


def send_hello_email(email1, email2):
  """
  給email1發(fā)送 新年好
  給email2發(fā)送 Happy New Year
  """
  # message格式(subject, message, from_email, recipient_list)
  message1 = ('新年好', '新年好', 'EMAIL_FROM', [email])
  message2 = ('Happy New Year', 'Happy New Year', EMAIL_FROM, [email2])
  send_status=send_mass_mail((message1, message2), fail_silently=False)

# 類定義
class EmailMessage(object):
  def __init__(self, subject='', body='', from_email=None, to=None, bcc=None,
         connection=None, attachments=None, headers=None, cc=None,
         reply_to=None):
  pass
  
# 使用
from django.core.mail import EmailMessage

email = EmailMessage(
  'Hello',
  'Body goes here',
  'from@example.com',
  ['to1@example.com', 'to2@example.com'],
  ['bcc@example.com'],
  reply_to=['another@example.com'],
  headers={'Message-ID': 'foo'},
)

from django.core import mail

with mail.get_connection() as connection:
  mail.EmailMessage(
    subject1, body1, from1, [to1],
    connection=connection,
  ).send()
  mail.EmailMessage(
    subject2, body2, from2, [to2],
    connection=connection,
  ).send()

from django.core import mail

connection = mail.get_connection()
# get_EmailMessage_list返回一個EmailMessage對象的列表
messages = get_EmailMessage_list()
connection.send_messages(messages)

from django.core import mail

connection = mail.get_connection()
connection.open()

email1 = mail.EmailMessage(
  'Hello',
  'Body goes here',
  'from@example.com',
  ['to1@example.com'],
  connection=connection,
)
email1.send() 

email2 = mail.EmailMessage(
  'Hello',
  'Body goes here',
  'from@example.com',
  ['to2@example.com'],
)
email3 = mail.EmailMessage(
  'Hello',
  'Body goes here',
  'from@example.com',
  ['to3@example.com'],
)
connection.send_messages([email2, email3])

connection.close()

# 在django.core.mail。backends.smtp.下
class EmailBackend(BaseEmailBackend):

  def __init__(self, host=None, port=None, username=None, password=None,
         use_tls=None, fail_silently=False, use_ssl=None, timeout=None,
         ssl_keyfile=None, ssl_certfile=None,**kwargs):
    pass

EMAIL_BACKEND = 'django.core.mail.backends.dummy.EmailBackend'