尝试在 python 3.8.3 中使用 smtplib 发送电子邮件时出错

Question

当我运行程序或尝试更新 smtplib 时出现错误。这是错误：

Here is the picture

我正在使用 python 3.8.3。任何帮助将不胜感激！

这是我的代码：

# from your Gmail account  
import smtplib 

# list of email_id to send the mail 
li = ["example2@gmail.com(email)", "example3@outlook.com(email)"] 

for dest in li: 
    s = smtplib.SMTP('smtp.gmail.com', 587) 
    s.starttls() 
    s.login("example1@gmail.com(email)", "example1(password)") 
    message = "Message_you_need_to_send"
    s.sendmail("example1@gmail.com(email)", dest, message) 
    s.quit() 

这是错误：

Traceback (most recent call last):
  File "d:/Auto_Email/Auto_Email3.py", line 16, in <module>
    server.login(username,password)
  File "C:\Users\drake\AppData\Local\Programs\Python\Python38\lib\smtplib.py", line 734, in login
    raise last_exception
  File "C:\Users\drake\AppData\Local\Programs\Python\Python38\lib\smtplib.py", line 723, in login
    (code, resp) = self.auth(
  File "C:\Users\drake\AppData\Local\Programs\Python\Python38\lib\smtplib.py", line 646, in auth
    raise SMTPAuthenticationError(code, resp)
smtplib.SMTPAuthenticationError: (535, b'5.7.8 Username and Password not accepted. Learn more at\n5.7.8  https://support.google.com/mail/?p=BadCredentials d9sm5982379qtq.56 - gsmtp')



PS D:\Auto_Email> pip install update smtplib
Collecting update
  Using cached update-0.0.1-py2.py3-none-any.whl (2.9 kB)
ERROR: Could not find a version that satisfies the requirement smtplib (from versions: none)
ERROR: No matching distribution found for smtplib

我已经尝试更新 smtplib（如上所示）并尝试了不同的用户名和密码，但都给了我同样的错误。我还允许访问我的 Google 帐户。

Answer 1

如果您仍然遇到问题，您需要先进入 google 帐户安全设置并允许不安全的应用访问该帐户。