python实现简单的发送邮件

import smtplib
from email.mime.text import MIMEText

smtpserver = "smtp.qq.com"
port =465
sender = "发件人账号@qq.com"
psw = "smtp服务的授权码"
receiver ="收件人账号@qq.com"
body = '<pre><h1> </h1></pre>'

msg = MIMEText(body,'html',"utf-8")
msg['from'] = sender
msg['to'] = receiver
msg['subject'] = "发送的内容  "
try:
smtp = smtplib.SMTP_SSL(smtpserver, port)
smtp.login(sender, psw)
smtp.sendmail(sender, receiver, msg.as_string())
smtp.quit()
print('success')
except smtplib.SMTPException:
print('ERRO')