Python 3はメール送信を実現

1、簡単な紹介
日常の仕事では、定例化されたタスクに遭遇したり、健康状態を監視したりする必要があります.この場合、自動的にメールを送る方法を選択することができます.ちょうど最近使っているので、まとめてみます.
2、python 3実装

# =============================================================
# !/usr/bin/python
# -*- coding=utf-8 -*-
# Name:         email
# Description:  Python3         
# Author:       
# Date:         2020/4/18
# Mail:         
# =============================================================


import smtplib
from email.utils import formatdate
from email.header import Header
from email.mime.base import MIMEBase
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart


username = "user_name"  #       
from_addr = username + "@foxmail.com"  #      
password = "12345678"  #      

smtp_addr = "xx.xx.com"  #      

#     ，     ，     list( Python2   )
to_addrs = ['[email protected]', '[email protected]', '[email protected]']


def message_template1():  #       -  1
    # --------------------      --------------------------
    mail_msg = """
    
Python       ...
    
これはjdリンクです
    """
    message = MIMEText(mail_msg, 'html', 'utf-8')
    message['Subject'] = Header('Python SMTP     ', 'utf-8')  #      
    message['From'] = Header(username, 'utf-8')  #   ，         
    message['To'] = Header('; '.join(to_addrs), 'utf-8')  #   ，          
    message['Date'] = formatdate(localtime=True)

    return message


def message_template2():  #       -  2
    # --------------------      --------------------------
    mail_msg = """
    
Python       ...
    
これはjdリンクです
    """

    message = MIMEMultipart('alternative')
    text_html = MIMEText(mail_msg, 'html', 'utf-8')

    message['To'] = ';'.join(to_addrs)
    message['Date'] = formatdate(localtime=True)
    message['Subject'] = 'Python SMTP     '
    message.add_header('reply-to', from_addr)  #     ，        
    message.add_header('from', username + " + from_addr + ">")  #           
    message.attach(text_html)
    return message


def send_email_():
    message = message_template1()
    message = message_template2()
    try:
        smtpObj = smtplib.SMTP()
        smtpObj.connect(host=smtp_addr)
        smtpObj.login(username, password)
        smtpObj.sendmail(from_addr, to_addrs, message.as_string())
        smtpObj.quit()
        print("      ")
    except smtplib.SMTPException as e:
        print(repr(e))
        print("Error:       ")


if __name__ == '__main__':
    send_email_()

学习を総括して、问题あるいは不当なところがあって、批判して指摘することができて、ありがとうございます.