SMTP邮件发送SDK Python3版

#!/usr/bin/python3
# -*- coding: utf-8 -*-
#SMTP邮件发送SDK Python3版

import smtplib
from email.mime.text import MIMEText
from email.utils import formataddr

class MAIL():

    def __init__(self, From, Pass, To, Subject, Message):
        self.__From = From
        self.__Pass = Pass
        self.__To = To
        self.__Subject = Subject
        self.__Message = Message
        
    #发送短信
    def send_mail_qq(self):         
        mail = MIMEText(self.__Message, 'plain', 'utf-8')
        mail['From'] = formataddr(["发件人",self.__From])
        mail['To'] = formataddr(["收件人",self.__To])
        mail['Subject'] = self.__Subject

        print(mail)
        server = smtplib.SMTP_SSL("smtp.qq.com",465)
        server.set_debuglevel(1)
        server.login(self.__From, self.__Pass)
        server.sendmail(self.__From, [self.__To], mail.as_string())
        server.quit()


if __name__ == "__main__":
    From = '[email protected]'      
    Pass = ''    
    To = '[email protected]' 
    Subject = 'hi, subject'
    Message = 'hi msg'

    entity = MAIL(From, Pass, To, Subject, Message)
    result = entity.send_mail_qq()
    print(result)