python3 使用smtplib发送邮件错误554

问题描述

问 题

python3使用smtplib和MIME发送邮件失败

代码：

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

def send_email(SMTP_host, from_addr, password, to_addrs, subject, content):
    email_client = SMTP(SMTP_host)
    email_client.login(from_addr, password)
    # create msg
    msg = MIMEText(content,'plain','utf-8')
    msg['Subject'] = Header(subject, 'utf-8')#subject
    msg['From'] = 'main<[e-mail]>'
    msg['To'] = "[e-mail]"
    email_client.sendmail(from_addr, to_addrs, msg.as_string())

    email_client.quit()

if __name__ == "__main__":
    send_email("smtp.163.com","[e-mail]","password","[e-mail]","test","hellow")
    

运行错误：

Traceback (most recent call last):
...
  File "D:/bioinformatics/python脚本/mai.py", line 14, in send_email
    email_client.sendmail(from_addr, to_addrs, msg.as_string())
  File "D:\软件\python\lib\smtplib.py", line 799, in sendmail
    raise SMTPDataError(code, resp)
smtplib.SMTPDataError: (554, b'DT:SPM 163 smtp8,DMCowACX58anaFJX9+uwAA--.20172S2 1465018537,please see http://mail.163.com/help/help_spam_16.htm?ip=219.143.13.117&hostid=smtp8&time=1465018537')

在网上找了很多方法，把防火墙也关了，修改了发件人收件人名称，但还是没有效果，真的不知道是什么原因。。

解决方案

最后终于还是找到解决办法了：
邮件主题为‘test’的时候就会出现错误，换成其他词就好了。。我也不知道这是什么奇葩的原因

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