Django : smtplib.SMTPAuthenticationError: 535, b'5.7.8 Username and Password not accepted-CodePudding

I was trying to send mail using the gmail smtp in DJango. I know about this option Less secured apps. But this option has been disabled by google now. Also I don't have any 2 factor authentication on my account.

Here is my setting.py

EMAIL_BACKEND = 'django.core.mail.backends.smtp.EmailBackend'
EMAIL_HOST = 'smtp.gmail.com'
EMAIL_PORT = 587
EMAIL_HOST_USER = '[email protected]' # put your gmail address here
EMAIL_HOST_PASSWORD = 'password'
EMAIL_USE_TLS = True

But I am getting error

[2022-06-15 10:28:10,688: ERROR/ForkPoolWorker-1] Task app.tasks.send_email_task[9068931b-a457-415e-b910-d7c631596fce] raised unexpected: SMTPAuthenticationError(535, b'5.7.8 Username and Password not accepted. Learn more at\n5.7.8  https://support.google.com/mail/?p=BadCredentials o16-20020a056a00215000b0051b97828505sm9333570pfk.166 - gsmtp')
Traceback (most recent call last):
  File "/etc/myprojectenv/lib/python3.8/site-packages/celery/app/trace.py", line 451, in trace_task
    R = retval = fun(*args, **kwargs)
  File "/etc/myprojectenv/lib/python3.8/site-packages/celery/app/trace.py", line 734, in __protected_call__
    return self.run(*args, **kwargs)
  File "/etc/myproject/app/tasks.py", line 12, in send_email_task
    return send_mail(
  File "/etc/myprojectenv/lib/python3.8/site-packages/django/core/mail/__init__.py", line 87, in send_mail
    return mail.send()
  File "/etc/myprojectenv/lib/python3.8/site-packages/django/core/mail/message.py", line 298, in send
    return self.get_connection(fail_silently).send_messages([self])
  File "/etc/myprojectenv/lib/python3.8/site-packages/django/core/mail/backends/smtp.py", line 124, in send_messages
    new_conn_created = self.open()
  File "/etc/myprojectenv/lib/python3.8/site-packages/django/core/mail/backends/smtp.py", line 91, in open
    self.connection.login(self.username, self.password)
  File "/usr/lib/python3.8/smtplib.py", line 743, in login
    raise last_exception
  File "/usr/lib/python3.8/smtplib.py", line 732, in login
    (code, resp) = self.auth(
  File "/usr/lib/python3.8/smtplib.py", line 655, 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 o16-20020a056a00215000b0051b97828505sm9333570pfk.166 - gsmtp')

Less secure app option also has been disabled now

I tried allowing access to

Now you need to generate the password for the mail app and select the device as windows computer.

This will generate a password. Provide this password in EMAIL_HOST_PASSWORD. Try triggering the functionality to send mail again, this should work fine now.

CodePudding user response：

Google does not accept email with the less secure app anymore, As Himanshu says above An alternative way to send Gmail using an App password.