Python使用smtplib模块发送电子邮件的流程详解

import smtplib
server = smtplib.SMTP('smtp.163.com', 25)
server.login('j_hao104@163.com', 'password')
Traceback (most recent call last):
 File "C:/python/t.py", line 192, in <module>
  server.login('j_hao104@163.com', 'password')
 File "C:\Python27\lib\smtplib.py", line 622, in login
  raise SMTPAuthenticationError(code, resp)
smtplib.SMTPAuthenticationError: (535, 'Error: authentication failed')

smtplib.SMTPAuthenticationError: (535, 'Error: authentication failed')

import smtplib
server = smtplib.SMTP('smtp.163.com', 25)
server.login('j_hao104@163.com', 'clientPassword')

(235, 'Authentication successful')

import smtplib
from email.mime.text import MIMEText
server = smtplib.SMTP('smtp.163.com', 25)
server.login('j_hao104@163.com', 'clientPassword')
msg = MIMEText('hello, send by Python...', 'plain', 'utf-8')
server.sendmail('j_hao104@163.com', ['946150454@qq.com'], msg.as_string()）

Traceback (most recent call last):
 File "C:/python/t.py", line 195, in <module>
  server.sendmail('j_hao104@163.com', ['946150454@qq.com'], msg.as_string())
 File "C:\Python27\lib\smtplib.py", line 746, in sendmail
  raise SMTPDataError(code, resp)
smtplib.SMTPDataError: (554, 'DT:SPM 163 smtp11,D8CowEDpDkE427JW_wQIAA--.4996S2 1454562105,please see http://mail.163.com/help/help_spam_16.htm?ip=171.221.144.51&hostid=smtp11&time=1454562105')

import smtplib
from email.header import Header
from email.mime.text import MIMEText
server = smtplib.SMTP('smtp.163.com', 25)
server.login('j_hao104@163.com', 'clientPassword')
msg = MIMEText('hello, send by Python...', 'plain', 'utf-8')
msg['From'] = 'j_hao104@163.com <j_hao104@163.com>'
msg['Subject'] = Header(u'text', 'utf8').encode()
msg['To'] = u'飞轮海 <jinghao5849312@qq.com>'
server.sendmail('j_hao104@163.com', ['946150454@qq.com'], msg.as_string())

import smtplib
from email.mime.text import MIMEText

to_list = ['123@123.com', '456@456.com']
server_host = 'smtp.163.com'

username = '你的邮箱账号'
password = '你的邮箱密码'


def send(to_list, sub, content):
  '''
  :param to_list: 收件人邮箱
  :param sub: 邮件标题
  :param content: 内容
  '''
  me = "manager" + "<" + username + ">" 
  # _subtype 可以设为html,默认是plain
  msg = MIMEText(content, _subtype='html')
  msg['Subject'] = sub
  msg['From'] = me
  msg['To'] = ';'.join(to_list)
  try:
    server = smtplib.SMTP()
    server.connect(server_host)
    server.login(username, password)
    server.sendmail(me, to_list, msg.as_string())
    server.close()
  except Exception as e:
    print str(e)

if __name__ == '__main__':
  send(to_list, "这个是一个邮件", "<h1>Hello, It's test email.</h1>")