Python3实现自动发送邮件

pip install smtplib
pip install email

import smtplib
from email.header import Header
from email.mime.text import MIMEText
 
# 第三方 SMTP 服务
mail_host = "smtp.163.com"      # SMTP服务器
mail_user = "***"                  # 用户名
mail_pass = "***"               # 授权密码，非登录密码
 
sender = '***@163.com'    # 发件人邮箱(最好写全, 不然会失败)
receivers = [***@qq.com']  # 接收邮件，可设置为你的QQ邮箱或者其他邮箱
 
content = 'Python'
title = '人生苦短'  # 邮件主题
 
def sendEmail():
 
    message = MIMEText(content, 'plain', 'utf-8')  # 内容, 格式, 编码
    message['From'] = "{}".format(sender)
    message['To'] = ",".join(receivers)
    message['Subject'] = title
 
    try:
        smtpObj = smtplib.SMTP_SSL(mail_host, 465)  # 启用SSL发信, 端口一般是465
        smtpObj.login(mail_user, mail_pass)  # 登录验证
        smtpObj.sendmail(sender, receivers, message.as_string())  # 发送
        print("mail has been send successfully.")
    except smtplib.SMTPException as e:
        print(e)
 
def send_email2(SMTP_host, from_account, from_passwd, to_account, subject, content):
    email_client = smtplib.SMTP(SMTP_host)
    email_client.login(from_account, from_passwd)
    # create msg
    msg = MIMEText(content, 'plain', 'utf-8')
    msg['Subject'] = Header(subject, 'utf-8')  # subject
    msg['From'] = from_account
    msg['To'] = to_account
    email_client.sendmail(from_account, to_account, msg.as_string())
 
    email_client.quit()
 
if __name__ == '__main__':
    sendEmail()
    # receiver = '***'
    # send_email2(mail_host, mail_user, mail_pass, receiver, title, content)

#coding: utf-8    
  
import smtplib    
from email.mime.multipart import MIMEMultipart    
from email.mime.text import MIMEText    
from email.mime.image import MIMEImage 
from email.header import Header   
    
#设置smtplib所需的参数
#下面的发件人，收件人是用于邮件传输的。
smtpserver = 'smtp.163.com'
username = 'XXX@163.com'
password='XXX'
sender='XXX@163.com'
#receiver='XXX@126.com'
#收件人为多个收件人
receiver=['XXX@126.com','XXX@126.com']
 
subject = 'Python email test'
#通过Header对象编码的文本，包含utf-8编码信息和Base64编码信息。以下中文名测试ok
#subject = '中文标题'
#subject=Header(subject, 'utf-8').encode()
    
#构造邮件对象MIMEMultipart对象
#下面的主题，发件人，收件人，日期是显示在邮件页面上的。
msg = MIMEMultipart('mixed') 
msg['Subject'] = subject
ms服务器托管网g['From'] = 'XXX@163.com '
#msg['To'] = 'XXX@126.com'
#收件人为多个收件人,通过join将列表转换为以;为间隔的字符串
msg['To'] = ";".join(receiver) 
#msg['Date']='2012-3-16'
 
#构造文字内容   
text = "Hi!nHow are you?nHere is the link you wanted:nhttp://www.baidu.com"    
text_plain = MIMEText(text,'plain', 'utf-8')    
msg.attach(text_plain)    
 
#构造图片链接
sendimagefile=open(r'testimage.png','rb').read()
image = MIMEImage(sendimagefile)
image.add_header('Content-ID','')
image["Content-Disposition"] = 'attachment; filename="testimage.png"'
msg.attach(image)
 
#构造html
#发送正文中的图片:由于包含未被许可的信息，网易邮箱定义为垃圾邮件，报554 DT:SPM ：

html = """
  
    
    
    
Hi!
  
       How are you?
  
       Here is the link you wanted.
 
    
 
    
  
"""    
text_html = MIMEText(html,'html', 'utf-8')
text_html["Content-Disposition"] = 'attachment; filename="texthtml.html"'   
msg.attach(text_html)    
 
 
#构造附件
sendfile=open(r'1.txt','rb').read()
text_att = MIMEText(sendfile, 'base64', 'utf-8') 
text_att["Content-Type"] = 'application/octet-stream'  
#以下附件可以重命名成aaa.txt  
#text_att["Content-Disposition"] = 'attachment; filename="aaa.txt"'
#另一种实现方式
text_att.add_header('Content-Disposition', 'attachment', filename='aaa.txt')
#以下中文测试不ok
#text_att["Content-Disposition"] = u'attachment; filename="中文附件.txt"'.decode('utf-8')
msg.attach(text_att)    
       
#发送邮件
smtp = smtplib.SMTP()    
smtp.connect('smtp.163.com')
#我们用set_debuglevel(1)就可以打印出和SMTP服务器交互的所有信息。
#smtp.set_debuglevel(1)  
smtp.login(username, password)    
smtp.sendmail(sender, receiver, msg.as_string())    
smtp.quit()