Python通过SMTP发送邮件总是验证失败。，pythonsmtp,以下是我的代码及返回信息

Python通过SMTP发送邮件总是验证失败。，pythonsmtp,以下是我的代码及返回信息

以下是我的代码及返回信息，163和qq的都尝试过但都是验证错误，密码什么的我肯定是没有输错的。
代码：

#-*- encoding: utf-8 -*-import os, sysimport smtplibfrom smtplib import SMTP_SSLfrom email.header import Headerfrom email.mime.text import MIMEText mailInfo = {    "from": "xxx@qq.com",    "to": "yyy@163.com",    "hostname": "smtp.qq.com",    "username": "xxx@qq.com",    "password": "*********",    "mailsubject": "this is test",    "mailtext": "hello, this is send mail test.",    "mailencoding": "utf-8"}         if __name__ == '__main__':    smtp = SMTP_SSL(mailInfo["hostname"])    smtp.set_debuglevel(1)    smtp.ehlo(mailInfo["hostname"])    smtp.login(mailInfo["username"],mailInfo["password"])         msg = MIMEText(mailInfo["mailtext"],"text",mailInfo["mailencoding"])    msg["Subject"] = Header(mailInfo["mailsubject"],mailInfo["mailencoding"])    msg["from"] = mailInfo["from"]    msg["to"] = mailInfo["to"]    smtp.sendmail(mailInfo["from"], mailInfo["to"], msg.as_string())         smtp.quit()

返回错误：

send: 'ehlo smtp.qq.com\r\n'reply: '250-smtp.qq.com\r\n'reply: '250-PIPELINING\r\n'reply: '250-SIZE 73400320\r\n'reply: '250-AUTH LOGIN PLAIN\r\n'reply: '250-AUTH=LOGIN\r\n'reply: '250-MAILCOMPRESS\r\n'reply: '250 8BITMIME\r\n'reply: retcode (250); Msg: smtp.qq.comPIPELININGSIZE 73400320AUTH LOGIN PLAINAUTH=LOGINMAILCOMPRESS8BITMIMEsend: 'AUTH PLAIN AGx************************************vZA==\r\n'reply: '535 Authentication failed\r\n'reply: retcode (535); Msg: Authentication failedTraceback (most recent call last):  File "C:\Users\Daniel\Desktop\mail1.py", line 23, in <module>    smtp.login(mailInfo["username"],mailInfo["password"])  File "C:\Python27\lib\smtplib.py", line 622, in login    raise SMTPAuthenticationError(code, resp)smtplib.SMTPAuthenticationError: (535, 'Authentication failed')

拜托大家帮忙解决下我的问题！！！

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