smtplib.SMTPDataError: (554, b'DT:SPM 163 smtp10,DsCowAA3nir1u6xZq42WDw--.22935S2 1504492533,please

 # from email.mime.text import MIMEText
 #
 # msg = MIMEText('hello, send by Python...', 'plain', 'utf-8')
 # # 输入Email地址和口令:
 # from_addr = input('From: ')
 # password = input('Password: ')
 # # 输入SMTP服务器地址:
 # smtp_server = input('SMTP server: ')
 # # 输入收件人地址:
 # to_addr = input('To: ')
 #
 # import smtplib
 #
 # server = smtplib.SMTP(smtp_server, 25)  # SMTP协议默认端口是25
 # server.set_debuglevel(1)
 # server.login(from_addr, password)
 # server.sendmail(from_addr, [to_addr], msg.as_string())
 # server.quit()

 # coding: utf-8
 import smtplib
 from email.mime.text import MIMEText
 from email.header import Header

 sender = 'fengyiru6369@163.com'
 receiver = '1194150169@qq.com'
 subject = 'python email test'
 smtpserver = 'smtp.163.com'
 username = 'fengyiru6369@163.com'
 password = 'XXXXXXXX'  # 是授权密码，而不是登录密码

 msg = MIMEText('你好', 'text', 'utf-8')  # 中文需参数‘utf-8’，单字节字符不需要
 msg['Subject'] = Header(subject, 'utf-8')

 smtp = smtplib.SMTP()
 smtp.connect('smtp.163.com')
 smtp.login(username, password)
 smtp.sendmail(sender, receiver, msg.as_string())
 smtp.quit()

只赋值了msg['Subject'], 没有赋值msg['From'], msg['To']，导致出现554情况，更改了后就好了。

注意MIMEText初始化的时候，中文的第二个参数要用'plain'，我用'text',中文就显示不出来。

msg['From'] 中人名为Tim，会和下面对应起来。