EMAIL_HOST = 'smtp_server'
EMAIL_PORT = 587
EMAIL_HOST_USER = 'my_username'
EMAIL_HOST_PASSWORD = 'my_password'
EMAIL_USE_TLS = True

def email_user(self, subject, message, from_email=None, **kwargs):
    return send_mail(subject, message, from_email, [self.email], **kwargs)

Traceback (most recent call last):
  File "C:UsersMetadeathEnvsdropinlibsite-packagesdjangocorehandlersexception.py", line 39, in inner
    response = get_response(request)
  File "C:UsersMetadeathEnvsdropinlibsite-packagesdjangocorehandlersbase.py", line 187, in _get_response
    response = self.process_exception_by_middleware(e, request)
  File "C:UsersMetadeathEnvsdropinlibsite-packagesdjangocorehandlersbase.py", line 185, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "C:UsersMetadeathEnvsdropinlibsite-packagesdjangoviewsdecoratorscsrf.py", line 58, in wrapped_view
    return view_func(*args, **kwargs)
  File "C:UsersMetadeathEnvsdropinlibsite-packagesdjangoviewsgenericbase.py", line 68, in view
    return self.dispatch(request, *args, **kwargs)
  File "C:UsersMetadeathEnvsdropinlibsite-packagesrest_frameworkviews.py", line 477, in dispatch
    response = self.handle_exception(exc)
  File "C:UsersMetadeathEnvsdropinlibsite-packagesrest_frameworkviews.py", line 437, in handle_exception
    self.raise_uncaught_exception(exc)
  File "C:UsersMetadeathEnvsdropinlibsite-packagesrest_frameworkviews.py", line 474, in dispatch
    response = handler(request, *args, **kwargs)
  File "C:UsersMetadeathEnvsdropinlibsite-packagesrest_frameworkdecorators.py", line 52, in handler
    return func(*args, **kwargs)
  File "C:UsersMetadeathDocumentsGitHubdjango-dropinapiviews.py", line 18, in register
    user = serializer.create(serializer.validated_data)
  File "C:UsersMetadeathDocumentsGitHubdjango-dropinapiserializers.py", line 86, in create
    is_sent = user.send_confirmation_email(confirmation_instance=confirmation_instance)
  File "C:UsersMetadeathDocumentsGitHubdjango-dropinusersmodels.py", line 139, in send_confirmation_email
    is_sent = self.email_user(subject, message, from_email)  # Returns the number of delivered emails
  File "C:UsersMetadeathDocumentsGitHubdjango-dropinusersmodels.py", line 132, in email_user
    return send_mail(subject, message, from_email, [self.email], **kwargs)
  File "C:UsersMetadeathEnvsdropinlibsite-packagesdjangocoremail__init__.py", line 62, in send_mail
    return mail.send()
  File "C:UsersMetadeathEnvsdropinlibsite-packagesdjangocoremailmessage.py", line 342, in send
    return self.get_connection(fail_silently).send_messages([self])
  File "C:UsersMetadeathEnvsdropinlibsite-packagesdjangocoremailbackendssmtp.py", line 100, in send_messages
    new_conn_created = self.open()
  File "C:UsersMetadeathEnvsdropinlibsite-packagesdjangocoremailbackendssmtp.py", line 64, in open
    self.connection.starttls(keyfile=self.ssl_keyfile, certfile=self.ssl_certfile)
  File "c:usersmetadeathappdatalocalprogramspythonpython36-32Libsmtplib.py", line 770, in starttls
    server_hostname=self._host)
  File "c:usersmetadeathappdatalocalprogramspythonpython36-32Libssl.py", line 401, in wrap_socket
    _context=self, _session=session)
  File "c:usersmetadeathappdatalocalprogramspythonpython36-32Libssl.py", line 808, in __init__
    self.do_handshake()
  File "c:usersmetadeathappdatalocalprogramspythonpython36-32Libssl.py", line 1061, in do_handshake
    self._sslobj.do_handshake()
  File "c:usersmetadeathappdatalocalprogramspythonpython36-32Libssl.py", line 683, in do_handshake
    self._sslobj.do_handshake()
ssl.SSLEOFError: EOF occurred in violation of protocol (_ssl.c:749)