python实战===使用smtp发送邮件的源代码,解决554错误码的问题

import smtplib
from email.mime.text import MIMEText
from email.header import Header
import time

def email():
    #发送邮箱服务器
    smtpserver = "smtp.163.com"
    #发送邮箱的账号/密码
    user= "我的邮箱@163.com"
    password="我的密码"
    #发送邮箱
    sender="我的邮箱@163.com"
    #收件箱
    receiver = "你的邮箱@qq.com"
   #发送主题
    subject = "《脑筋急转弯》"
    #编写HTML类型的邮件正文
    msg = MIMEText("<html><h1>ssssssssssssssss</h1></html>","html","utf-8")
    msg['Subject'] = Header(subject, 'utf-8')

    try:
        #这两个参数必须要,不然就会出现554的错误,不然少参数
        msg['from']=sender
        msg['to']=receiver
        #连接发送邮箱
        smtp = smtplib.SMTP()
        smtp.connect(smtpserver)
        smtp.login(user,password)
        smtp.sendmail(sender, receiver, msg.as_string())
        smtp.quit()
        print("执行第",i,"次,成功!")
        time.sleep(2)
    except:
        print("第",i,"次发送失败!")
i=1
while  i:
    email()
    i +=1
    if i >3:
        break