python实现邮件自动发送

本文实例为大家分享了python实现邮件自动发送的具体代码，供大家参考，具体内容如下

case 1：纯文本和HTML文件发送

# -*- coding: UTF-8 -*-


import smtplib
import traceback
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart

def sendmail(subject,msg,toaddrs,fromaddr,smtpaddr,password):
 '''
 @subject:邮件主题
 @msg:邮件内容
 @toaddrs:收信人的邮箱地址
 @fromaddr:发信人的邮箱地址
 @smtpaddr:smtp服务地址，可以在邮箱看，比如163邮箱为smtp.163.com
 @password:发信人的邮箱密码
 '''

 mail_msg = MIMEMultipart()
 if not isinstance(subject,unicode): #过滤或者不过滤貌似没啥影响
  subject = unicode(subject, 'utf-8')
 mail_msg['Subject'] = subject
 mail_msg['From'] =fromaddr
 mail_msg['To'] = ','.join(toaddrs)
 mail_msg.attach(MIMEText(msg, 'plain', 'utf-8')) #f发送文本文件
 #mail_msg.attach(MIMEText(msg, 'html', 'utf-8')) #发送html格式邮件
 try:
  s = smtplib.SMTP()
  s.connect(smtpaddr) #连接smtp服务器
  s.login(fromaddr,password) #登录邮箱
  s.sendmail(fromaddr, toaddrs, mail_msg.as_string()) #发送邮件
  s.quit()
  print "邮件发送成功！"
 except Exception,e:
  print "Error: unable to send email"
  print traceback.format_exc()


if __name__ == '__main__':
 fromaddr = "h******[e-mail]"
 smtpaddr = "smtp.126.com"
 toaddrs = ["83****[e-mail]","h******[e-mail]"]
 subject = "Hello,我是邮件主题"
 password = "不能告诉你"
 #msg = "Hello,我是邮件内容 !!!"
 msg="""
 <p>Python 邮件发送测试...</p>
 <p><a href="http://www.runoob.com" >这是一个链接</a></p>
 """
 sendmail(subject,msg,toaddrs,fromaddr,smtpaddr,password)

case 2.添加附件：发送带附件的邮件，首先要创建MIMEMultipart()实例，然后构造附件，如果有多个附件，可依次构造，最后利用smtplib.smtp发送。

# -*- coding: UTF-8 -*-

# 如何添加附件
import os


import smtplib
import traceback
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart
os.chdir("C:\\Users\\h****m\\Desktop\\Auto_email")


def sendmail(subject,msg,toaddrs,fromaddr,smtpaddr,password):
 '''
 @subject:邮件主题
 @msg:邮件内容
 @toaddrs:收信人的邮箱地址
 @fromaddr:发信人的邮箱地址
 @smtpaddr:smtp服务地址，可以在邮箱看，比如163邮箱为smtp.163.com
 @password:发信人的邮箱密码
 '''


 mail_msg = MIMEMultipart()
 if not isinstance(subject,unicode): #过滤或者不过滤貌似没啥影响
  subject = unicode(subject, 'utf-8')
 mail_msg['Subject'] = subject
 mail_msg['From'] =fromaddr
 mail_msg['To'] = ','.join(toaddrs)
 #mail_msg.attach(MIMEText(msg, 'plain', 'utf-8')) #f发送文本文件
 mail_msg.attach(MIMEText(msg, 'html', 'utf-8')) #发送html格式邮件
 
 #构造附件1
 att1=MIMEText(open("test_file1.txt",'rb').read(),'base64','utf-8') #注意：直接读取中文文件名会报错 
 att1["Content-Type"] = 'application/octet-stream'
 att1["Content-Disposition"] = 'attachment; filename="test_file1.txt"'
 mail_msg.attach(att1)
 
 
 #构造附件2：添加中文附件名
 att2=MIMEText(open(u'测试文件2.docx','rb').read(),'base64','utf-8')
 att2["Content-Type"] = 'application/octet-stream'
 att2["Content-Disposition"] = 'attachment; filename="test_file2.docx"'
 mail_msg.attach(att2)
 
 try:
  s = smtplib.SMTP()
  s.connect(smtpaddr) #连接smtp服务器
  s.login(fromaddr,password) #登录邮箱
  s.sendmail(fromaddr, toaddrs, mail_msg.as_string()) #发送邮件
  s.quit()
  print "邮件发送成功！"
 except Exception,e:
  print "Error: unable to send email"
  print traceback.format_exc()


if __name__ == '__main__':
 fromaddr = "h****[e-mail]"
 smtpaddr = "smtp.126.com"
 toaddrs = ["83****[e-mail]","h****[e-mail]"]
 subject = "Hello,我是邮件主题"
 password = "不能告诉你"
 #msg = "Hello,我是邮件内容 !!!"
 msg="""
 <p>Python 邮件发送测试...</p>
 <p><a href=http://www.runoob.com >这是一个链接</a></p>
 """
 sendmail(subject,msg,toaddrs,fromaddr,smtpaddr,password)

case 3: 发送图片(容易被判别为垃圾邮件，导致：SMTPDataError: (554, 'DT:SPM 126……错误)

# -*- coding: utf-8 -*-

fromaddr = "h****[e-mail]"
smtpaddr = "smtp.126.com"
toaddrs = ["83****[e-mail]","h****[e-mail]"]
subject = "Hello,我是邮件主题"
password = "不能告诉你"

#test3
msg = """
<p>Python 邮件发送添加图片测试...</p>
<p><a href="http://www.runoob.com" >菜鸟教程链接</a></p>
<p>图片演示：</p>
<p><img src="cid:image1"></p>
"""

import os
import smtplib

from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart
from email.mime.image import MIMEImage
os.chdir("C:\\Users\\h****m\\Desktop\\Auto_email")

msgRoot = MIMEMultipart('related')
if not isinstance(subject,unicode): #过滤或者不过滤貌似没啥影响
 subject = unicode(subject, 'utf-8')


msgRoot['Subject'] = subject
msgRoot['From'] =fromaddr
msgRoot['To'] = ','.join(toaddrs)


msgAlternative = MIMEMultipart('alternative')
msgRoot.attach(msgAlternative)

msg = """
<p>Python 邮件发送测试...</p>
<p>图片演示：</p>
<p><img src="cid:image1"></p>
"""
msgAlternative.attach(MIMEText(msg, 'html', 'utf-8'))


fp = open('test.PNG', 'rb')
msgImage = MIMEImage(fp.read())
fp.close()

# 定义图片 ID，在 HTML 文本中引用
msgImage.add_header('Content-ID', '<image1>')
msgRoot.attach(msgImage)

s = smtplib.SMTP()
s.connect(smtpaddr) #连接smtp服务器
s.login(fromaddr,password) #登录邮箱
s.sendmail(fromaddr, toaddrs, msgRoot.as_string()) #发送邮件
s.quit()
print "邮件发送成功！"

#邮件发送成功！

对于case3，发送很不稳定，时而发送得出，时而报 SMTPDataError: 554错误，等有空了，看有没有方法弄个稳定的版本。case1,case2在工作中基本够用了。

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持三水点靠木。