id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
34386	Error while sending TLS smtp email when no EMAIL_SSL_CERTFILE / EMAIL_SSL_KEYFILE are specified in project settings	Dmitriy Sintsov	Dmitriy Sintsov	"Reproduced with unpatched Django 4.2b1. Works with unpatched Django 3.2 / 4.1

Here is the traceback with Django 4.2b1:

{{{
ERROR Internal Server Error: /password-reset/
Traceback (most recent call last):
  File ""/home/user/work/ispdevenv/lib/python3.10/site-packages/django/core/handlers/exception.py"", line 55, in inner
    response = get_response(request)
  File ""/home/user/work/ispdevenv/lib/python3.10/site-packages/django/core/handlers/base.py"", line 185, in _get_response
    response = middleware_method(
  File ""/home/user/work/ispdevenv/lib/python3.10/site-packages/django_jinja_knockout/middleware.py"", line 45, in process_view
    result = self.djk_view(request, view_func, view_args, view_kwargs)
  File ""/home/user/work/ispdevenv/lib/python3.10/site-packages/django_jinja_knockout/middleware.py"", line 269, in djk_view
    return exception_response(request, e)
  File ""/home/user/work/ispdevenv/lib/python3.10/site-packages/django_jinja_knockout/http.py"", line 99, in exception_response
    raise e
  File ""/home/user/work/ispdevenv/lib/python3.10/site-packages/django_jinja_knockout/middleware.py"", line 262, in djk_view
    return view_func(request, *view_args, **view_kwargs)
  File ""/home/user/work/ispdevenv/lib/python3.10/site-packages/django/views/generic/base.py"", line 104, in view
    return self.dispatch(request, *args, **kwargs)
  File ""/home/user/work/ispdevenv/lib/python3.10/site-packages/django/utils/decorators.py"", line 46, in _wrapper
    return bound_method(*args, **kwargs)
  File ""/home/user/work/ispdevenv/lib/python3.10/site-packages/django/utils/decorators.py"", line 134, in _wrapper_view
    response = view_func(request, *args, **kwargs)
  File ""/home/user/work/ispdevenv/lib/python3.10/site-packages/django/contrib/auth/views.py"", line 242, in dispatch
    return super().dispatch(*args, **kwargs)
  File ""/home/user/work/ispdevenv/lib/python3.10/site-packages/django/views/generic/base.py"", line 143, in dispatch
    return handler(request, *args, **kwargs)
  File ""/home/user/work/ispdevenv/lib/python3.10/site-packages/django/views/generic/edit.py"", line 153, in post
    return self.form_valid(form)
  File ""/home/user/work/ispdevenv/lib/python3.10/site-packages/django/contrib/auth/views.py"", line 255, in form_valid
    form.save(**opts)
  File ""/home/user/work/ispdevenv/lib/python3.10/site-packages/django/contrib/auth/forms.py"", line 362, in save
    self.send_mail(
  File ""/home/user/work/ispdevenv/lib/python3.10/site-packages/django/contrib/auth/forms.py"", line 303, in send_mail
    email_message.send()
  File ""/home/user/work/ispdevenv/lib/python3.10/site-packages/django/core/mail/message.py"", line 298, in send
    return self.get_connection(fail_silently).send_messages([self])
  File ""/home/user/work/ispdevenv/lib/python3.10/site-packages/django/core/mail/backends/smtp.py"", line 125, in send_messages
    new_conn_created = self.open()
  File ""/home/user/work/ispdevenv/lib/python3.10/site-packages/django/core/mail/backends/smtp.py"", line 90, in open
    self.connection.starttls(context=self.ssl_context)
  File ""/usr/lib/python3.10/smtplib.py"", line 790, in starttls
    self.sock = context.wrap_socket(self.sock,
  File ""/usr/lib/python3.10/ssl.py"", line 513, in wrap_socket
    return self.sslsocket_class._create(
  File ""/usr/lib/python3.10/ssl.py"", line 1071, in _create
    self.do_handshake()
  File ""/usr/lib/python3.10/ssl.py"", line 1342, in do_handshake
    self._sslobj.do_handshake()
ssl.SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:997)
ERROR ""POST /password-reset/ HTTP/1.1"" 500 194468
}}}"	Bug	closed	Core (Mail)	dev	Release blocker	fixed	smtp mail backend		Ready for checkin	1	0	0	0	1	0