SMTP表现得很奇怪

Posted 2021-04-15

我试图在python中使用SMTPLIB发送消息，但是我收到一条错误消息。我很肯定使用的电子邮件和密码是正确的。我试图通过网络浏览器登录，无需登录。我从SENDERS电子邮件中获得了不太安全的来源，如下面的stackoverflow文章所述：Error sending email: raise SMTPAuthenticationError(code, resp)。我在下面的代码中替换了单词而不是实际的电子邮件和密码：

import smtplib

server = smtplib.SMTP('smtp.gmail.com', 587)
server.starttls()
server.login("senderemail", "senderemailpassword")

msg = "Hello!"
server.sendmail("senderemail", "recieveremail", msg)
server.quit()

错误信息：

Traceback (most recent call last):
  File "D:HussainHussain's computingPythonemailingtest.py", line 5, in <module>
    server.login("senderemail", "senderpassword")
  File "C:UsersHammadAppDataLocalProgramsPythonPython37-32libsmtplib.py", line 730, in login
    raise last_exception
  File "C:UsersHammadAppDataLocalProgramsPythonPython37-32libsmtplib.py", line 721, in login
    initial_response_ok=initial_response_ok)
  File "C:UsersHammadAppDataLocalProgramsPythonPython37-32libsmtplib.py", line 642, in auth
    raise SMTPAuthenticationError(code, resp)
smtplib.SMTPAuthenticationError: (534, b'5.7.14 <https://accounts.google.com/signin/continue?sarp=1&scc=1&plt=AKgnsbvT
5.7.14 ULHSk5VkFjTMqIX_jl5P4GMOarejb0s0WpOqP5RRrWPijD_2GRXQ--JBo5t2r_5pz-ysoY
5.7.14 Eqv-0GUXB4v321WRxe2uRR1FlFqSTWy-qwXSDmXkkWqwah1akDIy4iw73_mach6-KntI0A
5.7.14 HLVsfpyrYaTDdeJd54pUPlCEI5W9kZiv48-Ir2-NhbL_rqHrg3OrC-432Uc90Rskt9qNd0
5.7.14 vAm9r3GQr8jUxrYIgj9YUP0h8xr8HKFFDQSX_RcuTn2lSrXIuy> Please log in via
5.7.14 your web browser and then try again.
5.7.14  Learn more at
5.7.14  https://support.google.com/mail/answer/78754 h7-v6sm8163217wrs.3 - gsmtp')

如果有人可以修复我的代码，将会非常有帮助。

答案

默认情况下，Google会阻止任何从不使用现代安全标准的脚本/应用程序登录的尝试。但是，您可以更改以下设置：https://www.google.com/settings/security/lesssecureapps。

另一答案

如this tutorial所述，它可能值得Displaying the unlock captcha。