Python smtplib:Gmail 有效，但仅“有时"

问题描述

我编写了一个简单的脚本来通过 Gmail SMTP 服务器发送电子邮件.代码如下:

I wrote a simple script to send an email via the Gmail SMTP server. Here the code:

import smtplib
msg = 'Hello World!'
server = smtplib.SMTP('smtp.gmail.com', 587) #port 465 or 587
server.ehlo()
server.starttls()
server.ehlo()
server.login('username@googlemail.com','password')
server.sendmail('username@googlemail.com','username@googlemail.com', msg)
server.close()

有时它有效，有时我得到一个错误.原因是什么?我已将 Gmail 配置为接受不太安全的应用程序.如果发生错误，我会收到以下消息:

Sometimes it works and sometimes I get an error. What is the reason for it? I have configured Gmail for accepting less secure apps. If the error occurs I get the following message:

Traceback (most recent call last):
  File "email.py", line 31, in <module>
    server.login('username@googlemail.com','password')
  File "/usr/lib/python3.5/smtplib.py", line 729, in login
    raise last_exception
  File "/usr/lib/python3.5/smtplib.py", line 720, in login
    initial_response_ok=initial_response_ok)
  File "/usr/lib/python3.5/smtplib.py", line 641, in auth
    raise SMTPAuthenticationError(code, resp)
smtplib.SMTPAuthenticationError: (534, b'5.7.14 <https://accounts.google.com/signin/continue?sarp=1&scc=1&plt=AKgnsbvQ
5.7.14 DBMYWMukfjghdjfkghfjkhjkfhgjkdhgdfjkghekjghekjgndjkSm5lAOfEpP2Nt
5.7.14 QihtNp5izjfghjjkjhgbhjbGHJVHJVjhvhjbhjbhjDZwhJFV-FiyvI-OGW
5.7.14 jcpmHcQAcOR8e8G0zOfdugjhfdjd-sdfiugdsjfdsrthdfewrzjhg-shgv2HxmgWpZg3Z
5.7.14 4G1ENiAlgiEnrkXyRbTG3frjZZdPg> Please log in via your web browser and
5.7.14 then try again.
5.7.14  Learn more at
5.7.14  https://support.google.com/mail/answer/78754 g40sm24698383wrg.19 - gsmtp')

我在互联网上找不到任何帮助.非常感谢您的每一个建议.

I couldn't find any help on the internet. Many thanks in advance for every advice.

推荐答案

答案建议首先为不太安全的应用启用访问权限.如果这不起作用，您可以尝试访问该页面上提供的链接:https://www.google.com/accounts/DisplayUnlockCaptcha

The answer recommends enabling access for less secure apps first. If that does not work you could try visiting the link, which is supplied on that page: https://www.google.com/accounts/DisplayUnlockCaptcha

这可能会启用访问权限.

This may enable access.

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