exchangelib.errors.UnauthorizedError: Invalid credentials for https://[domain].de/EWS/Exchange.asmx about exchangelib HOT 6 CLOSED

Traceback (most recent call last):
  File "/home/lkleemann/.local/lib/python3.12/site-packages/exchangelib/util.py", line 833, in post_ratelimited
    r = session.post(**kwargs)
        ^^^^^^^^^^^^^^^^^^^^^^
  File "/home/lkleemann/.local/lib/python3.12/site-packages/requests/sessions.py", line 637, in post
    return self.request("POST", url, data=data, json=json, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/lkleemann/.local/lib/python3.12/site-packages/requests/sessions.py", line 589, in request
    resp = self.send(prep, **send_kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/lkleemann/.local/lib/python3.12/site-packages/requests/sessions.py", line 710, in send
    r = dispatch_hook("response", hooks, r, **kwargs)
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/lkleemann/.local/lib/python3.12/site-packages/requests/hooks.py", line 30, in dispatch_hook
    _hook_data = hook(hook_data, **kwargs)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/lkleemann/.local/lib/python3.12/site-packages/requests_ntlm/requests_ntlm.py", line 168, in response_hook
    return self.retry_using_http_NTLM_auth(
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/lkleemann/.local/lib/python3.12/site-packages/requests_ntlm/requests_ntlm.py", line 133, in retry_using_http_NTLM_auth
    auth_header_value = response2.headers[auth_header_field]
                        ~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
  File "/home/lkleemann/.local/lib/python3.12/site-packages/requests/structures.py", line 52, in __getitem__
    return self._store[key.lower()][1]
           ~~~~~~~~~~~^^^^^^^^^^^^^
KeyError: 'www-authenticate'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/lkleemann/.local/lib/python3.12/site-packages/exchangelib/services/common.py", line 308, in _get_elements
    yield from self._response_generator(payload=payload)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/lkleemann/.local/lib/python3.12/site-packages/exchangelib/services/common.py", line 271, in _response_generator
    response = self._get_response_xml(payload=payload)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/lkleemann/.local/lib/python3.12/site-packages/exchangelib/services/common.py", line 404, in _get_response_xml
    r = self._get_response(payload=payload, api_version=api_version)
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/lkleemann/.local/lib/python3.12/site-packages/exchangelib/services/common.py", line 355, in _get_response
    r, session = post_ratelimited(
                 ^^^^^^^^^^^^^^^^^
  File "/home/lkleemann/.local/lib/python3.12/site-packages/exchangelib/util.py", line 852, in post_ratelimited
    raise ErrorInternalServerTransientError(f"Reraised from {e.__class__.__name__}({e})")
exchangelib.errors.ErrorInternalServerTransientError: Reraised from KeyError('www-authenticate')

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/lkleemann/.local/lib/python3.12/site-packages/exchangelib/version.py", line 202, in guess
    list(ConvertId(protocol=protocol).call([AlternateId(id="DUMMY", format=EWS_ID, mailbox="DUMMY")], ENTRY_ID))
  File "/home/lkleemann/.local/lib/python3.12/site-packages/exchangelib/services/common.py", line 225, in _elems_to_objs
    for elem in elems:
  File "/home/lkleemann/.local/lib/python3.12/site-packages/exchangelib/services/common.py", line 287, in _chunked_get_elements
    yield from self._get_elements(payload=payload_func(chunk, **kwargs))
  File "/home/lkleemann/.local/lib/python3.12/site-packages/exchangelib/services/common.py", line 340, in _get_elements
    self._handle_backoff(ErrorServerBusy(f"Reraised from {e.__class__.__name__}({e})", back_off=wait))
  File "/home/lkleemann/.local/lib/python3.12/site-packages/exchangelib/services/common.py", line 446, in _handle_backoff
    raise e
exchangelib.errors.ErrorServerBusy: Reraised from ErrorInternalServerTransientError(Reraised from KeyError('www-authenticate'))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/lkleemann/development/IntranetSystem/server/src/python/exchange/exchangeService.py", line 44, in <module>
    IntranetExchangeConnection = IntranetExchangeConnectionFile.IntranetExchangeConnection()
                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/lkleemann/development/IntranetSystem/server/src/python/exchange/functions/exchangeConnection.py", line 19, in __init__
    self.mailAccount_Intranet = Account(
                                ^^^^^^^^
  File "/home/lkleemann/.local/lib/python3.12/site-packages/exchangelib/account.py", line 205, in __init__
    self.version = self.protocol.version.copy()
                   ^^^^^^^^^^^^^^^^^^^^^
  File "/home/lkleemann/.local/lib/python3.12/site-packages/exchangelib/protocol.py", line 480, in version
    self.config.version = Version.guess(self, api_version_hint=self.api_version_hint)
                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/lkleemann/.local/lib/python3.12/site-packages/exchangelib/version.py", line 206, in guess
    raise TransportError(f"No valid version headers found in response ({e!r})")
exchangelib.errors.TransportError: No valid version headers found in response (ErrorServerBusy("Reraised from ErrorInternalServerTransientError(Reraised from KeyError('www-authenticate'))"))

self.credentials = Credentials(
            username='Test.User@[domain].de', password='[password]')
        
self.config = Configuration(server="[server]",
    credentials=self.credentials, auth_type="NTLM"
)
#  retry_policy=FaultTolerance(max_wait=3600),

self.mailAccount= Account(
    primary_smtp_address='Test.User@[domain].de', config=self.config,
    autodiscover=False, access_type=DELEGATE
)