Use Python to encapsulate a tool class that sends mail regularly

Import third-party library

import smtplib
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart
from email.mime.image import MIMEImage

Tool class

Create a util.py file

class Email():

    def __init__(self, mail_user, mail_pwd, mail_host=''):

        #  No transmission will be judged automatically   Can't judge the default QQ mailbox 
        if mail_host:
            self.mail_host = mail_host
        elif mail_user.endswith('163.com'):
            self.mail_host = 'smtp.163.com'
        elif mail_user.endswith(('sina.com', 'sina.cn')):
            self.mail_host = 'smtp.163.com'
        elif mail_user.endswith('qq.com'):
            self.mail_host = 'smtp.qq.com'
        elif mail_user.endswith('sohu.com'):
            self.mail_host = 'smtp.sohu.com'
        else:
            self.mail_host = 'smtp.qq.com'
        self.mail_user = mail_user
        self.is_login = False
        try:
            smtpObj = smtplib.SMTP_SSL(mail_host, 465)
            smtpObj.login(mail_user, mail_pwd)
            self.is_login = True
            self.smtpObj = smtpObj
        except Exception as e:
            print(" Login failed ",e)

    def send(self, title, msg, receivers: list, img=''):
        """
         send out smtp Mail to recipient 
        :param title:  Email title 
        :param msg:  If you send pictures , Need to be in msg Embedded <img src='cid:xxx'>,xxx Path for picture 
        :param receivers:  The receiver , You can send in multiple recipients , Pass in as a list 
        :param img:  Picture path 
        :return:
        """
        if self.is_login:
            message = MIMEMultipart('alternative')
            msg_html = MIMEText(msg, 'html', 'utf-8')
            message.attach(msg_html)
            message['Subject'] = title
            message['From'] = self.mail_user
            if img:
                with open(img, "rb") as f:
                    msg_img = MIMEImage(f.read())
                msg_img.add_header('Content-ID', img)
                message.attach(msg_img)
            try:
                self.smtpObj.sendmail(self.mail_user, receivers, message.as_string())
            except Exception as e:
                print(" Failed to send mail !", e)
        else:
            print(' Mailbox is not logged in ')

test  

1、 Here we use qq Mailbox as an example , First log in to the web version qq mailbox , Click Settings , Find account , open POP3/SMTP service

2、 Get authorization code

 3、 Test code

from util import Email

if __name__ == '__main__':

    #  The first parameter ： Email account 
    #  The second parameter ： Authorization code 
    #  The third parameter ： Can not fill , Will identify according to the email account 
    email = Email("[email protected]","durkdfhhxxxjoeahe","smtp.qq.com")
    email.send(" test ","hahaha<br><img src='cid:./qr_code.png'>",["[email protected]"],'./qr_code.png')

 4、 test result

  Expand

Such written words are not very good , Because email and other information are written in the code , It is not convenient for centralized management and use , So the following words , We can write some mailbox information in the configuration file