python发送邮箱的小项目

import smtplib
from email.mime.text import MIMEText

receiver = input('输入接受者邮箱\n')
subject = input('输入标题')
content = input('输入内容')
host = 'smtp.163.com'

user_name = '153******39'
pwd = '******' #163邮箱的授权码
sender = '15383880339@163.com'

message = MIMEText(content,'plain','utf-8')
message['From'] = sender
message['to'] = receiver153******39
message['Subject'] = subject

try:
    # 链接163服务器
    smtp_obj = smtplib.SMTP(host,25)
    # 进行用户密码验证
    smtp_obj.login(user_name,pwd)
    # 发送邮件
    smtp_obj.sendmail(sender,receiver,message.as_string())
    print('发送成功')
except smtplib.SMTPException as error:
    print(error)
    print('发送失败')