exchangelib

Exchangelib error in Python: www-authenticate

淺唱寂寞╮ — Wed, 27 Jan 2021 23:05:09 +0000

Exchangelib error in Python: www-authenticate 淺唱寂寞╮ 2021-01-28 07:05:09

问题

I'm randomly facing an authentication error using library exchangelib:

from exchangelib import DELEGATE, Account, Credentials

creds = Credentials(
    username=username,
    password=pw)

account = Account(
    primary_smtp_address=mailbox_mail,
    credentials=creds,
    autodiscover=True,
    access_type=DELEGATE
)

The definition of the account variable causes the following error, but can't find why or anything useful in the relative documentation:

[2020-09-03 15:00:56,588] {taskinstance.py:1059} ERROR - 'www-authenticate'
Traceback (most recent call last)
  File "/opt/python3.6/lib/python3.6/site-packages/cached_property.py", line 69, in __get_
    return obj_dict[name
KeyError: 'root

During handling of the above exception, another exception occurred

Traceback (most recent call last)
  File "/usr/local/lib/airflow/airflow/models/taskinstance.py", line 930, in _run_raw_tas
    result = task_copy.execute(context=context
  File "/usr/local/lib/airflow/airflow/operators/python_operator.py", line 113, in execut
    return_value = self.execute_callable(
  File "/usr/local/lib/airflow/airflow/operators/python_operator.py", line 118, in execute_callabl
    return self.python_callable(*self.op_args, **self.op_kwargs
  File "/home/airflow/gcs/dags/dg_functions/dg_flash_news_competitiva_mail/fun_flash_news_extract.py", line 34, in flash_news_extractio
    inbox = account.root / 'Top of Information Store' / 'Inbox
  File "/opt/python3.6/lib/python3.6/site-packages/cached_property.py", line 73, in __get_
    return obj_dict.setdefault(name, self.func(obj)
  File "/opt/python3.6/lib/python3.6/site-packages/exchangelib/account.py", line 270, in roo
    return Root.get_distinguished(account=self
  File "/opt/python3.6/lib/python3.6/site-packages/exchangelib/folders/roots.py", line 109, in get_distinguishe
    folder=cls(account=account, name=cls.DISTINGUISHED_FOLDER_ID, is_distinguished=True
  File "/opt/python3.6/lib/python3.6/site-packages/exchangelib/folders/base.py", line 487, in resolv
    folders = list(FolderCollection(account=account, folders=[folder]).resolve()
  File "/opt/python3.6/lib/python3.6/site-packages/exchangelib/folders/collections.py", line 256, in resolv
    additional_fields=additional_field
  File "/opt/python3.6/lib/python3.6/site-packages/exchangelib/folders/collections.py", line 319, in get_folder
    shape=ID_ONLY
  File "/opt/python3.6/lib/python3.6/site-packages/exchangelib/services/get_folder.py", line 34, in cal
    shape=shape
  File "/opt/python3.6/lib/python3.6/site-packages/exchangelib/services/common.py", line 540, in _pool_request
    for elem in self._get_elements(payload=payload_func(chunk, **kwargs))
  File "/opt/python3.6/lib/python3.6/site-packages/exchangelib/services/common.py", line 84, in _get_element
    response = self._get_response_xml(payload=payload
  File "/opt/python3.6/lib/python3.6/site-packages/exchangelib/services/common.py", line 162, in _get_response_xm
    stream=self.streaming
  File "/opt/python3.6/lib/python3.6/site-packages/exchangelib/util.py", line 715, in post_ratelimite
    stream=stream
  File "/opt/python3.6/lib/python3.6/site-packages/requests/sessions.py", line 578, in pos
    return self.request('POST', url, data=data, json=json, **kwargs
  File "/opt/python3.6/lib/python3.6/site-packages/requests/sessions.py", line 530, in reques
    resp = self.send(prep, **send_kwargs
  File "/opt/python3.6/lib/python3.6/site-packages/requests/sessions.py", line 650, in sen
    r = dispatch_hook('response', hooks, r, **kwargs
  File "/opt/python3.6/lib/python3.6/site-packages/requests/hooks.py", line 31, in dispatch_hoo
    _hook_data = hook(hook_data, **kwargs
  File "/opt/python3.6/lib/python3.6/site-packages/requests_ntlm/requests_ntlm.py", line 151, in response_hoo
    kwarg
  File "/opt/python3.6/lib/python3.6/site-packages/requests_ntlm/requests_ntlm.py", line 103, in retry_using_http_NTLM_aut
    auth_header_value = response2.headers[auth_header_field
  File "/opt/python3.6/lib/python3.6/site-packages/requests/structures.py", line 54, in __getitem_
    return self._store[key.lower()][1
KeyError: 'www-authenticate

It's strange because this error happens in a way it seems random. When this error occurs I just re-run the code and it immediately works.

I use exchangelib==3.2.0 and Python 3.7.

EDIT: Following you can find an OK log and a KO log:

OK LOG:

2020-09-04 10:12:24 DEBUG    Waiting for autodiscover_cache lock
2020-09-04 10:12:24 DEBUG    autodiscover_cache lock acquired
2020-09-04 10:12:24 DEBUG    Server [server_name]: Created session 29854
2020-09-04 10:12:24 DEBUG    Cache hit for key ([domain_name], Credentials([domaint][user], '********')): https://[server_name]/Autodiscover/Autodiscover.xml
2020-09-04 10:12:24 DEBUG    Server [server_name]: Waiting for session
2020-09-04 10:12:24 DEBUG    Server [server_name]: Got session 29854
2020-09-04 10:12:24 DEBUG    Session 29854 thread 140450161141504: retry 0 timeout 10 POST'ing to https://[server_name]/Autodiscover/Autodiscover.xml after 10s wait
2020-09-04 10:12:24 DEBUG    Starting new HTTPS connection (1): [server_name]:443
2020-09-04 10:12:24 DEBUG    https://[server_name]:443 "POST /Autodiscover/Autodiscover.xml HTTP/1.1" 401 0
2020-09-04 10:12:24 DEBUG    https://[server_name]:443 "POST /Autodiscover/Autodiscover.xml HTTP/1.1" 401 0
2020-09-04 10:12:24 DEBUG    https://[server_name]:443 "POST /Autodiscover/Autodiscover.xml HTTP/1.1" 200 1512
2020-09-04 10:12:24 DEBUG    Retry: 0
Waited: 10
Timeout: 10
Session: 29854
Thread: 140450161141504
Auth type: <requests_ntlm.requests_ntlm.HttpNtlmAuth object at 0x7fbd16c577c0>
URL: https://[server_name]/Autodiscover/Autodiscover.xml
HTTP adapter: <requests.adapters.HTTPAdapter object at 0x7fbd16c576d0>
Allow redirects: False
Streaming: False
Response time: 0.45260270000017044
Status code: 200
Request headers: {'User-Agent': 'exchangelib/3.2.0 (python-requests/2.24.0)', 'Accept-Encoding': 'gzip, deflate', 'Accept': '*/*', 'Connection': 'Keep-Alive', 'Content-Type': 'text/xml; charset=utf-8', 'Content-Length': '363', 'Authorization': 'NTLM 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'}
Response headers: {'Cache-Control': 'private', 'Content-Length': '1512', 'Content-Type': 'text/xml; charset=utf-8', 'Content-Encoding': 'gzip', 'Vary': 'Accept-Encoding', 'Server': 'Microsoft-IIS/8.5', 'Set-Cookie': 'X-BackEndCookie=S-1-5-21-842925246-725345543-1163770773-1933531=u56Lnp2ejJqBy82bmZqeycbSx8ucztLLxsjH0seczJ3SnMjKxprNmpnGyZyZgYHNz83P0s7P0s/Lq87Pxc7NxcrMgY2QkIvRlouBzg==; expires=Sun, 04-Oct-2020 10:12:53 GMT; path=/Autodiscover; secure; HttpOnly', 'Persistent-Auth': 'true', 'request-id': '75ad68fb-99a1-490d-a755-21df9b7dc8d7', 'X-CalculatedBETarget': 'wivex01.[domain_name]', 'X-DiagInfo': 'WIVEX01', 'X-BEServer': 'WIVEX01', 'X-AspNet-Version': '4.0.30319', 'X-Powered-By': 'ASP.NET, ARR/3.0', 'X-FEServer': 'WMOEX04', 'Date': 'Fri, 04 Sep 2020 10:12:24 GMT'}
Request data: b'<?xml version=\'1.0\' encoding=\'utf-8\'?>\n<Autodiscover xmlns="http://schemas.microsoft.com/exchange/autodiscover/outlook/requestschema/2006"><Request><EMailAddress>[mail_address]</EMailAddress><AcceptableResponseSchema>http://schemas.microsoft.com/exchange/autodiscover/outlook/responseschema/2006a</AcceptableResponseSchema></Request></Autodiscover>'
Response data: b'<?xml version="1.0" encoding="utf-8"?>\r\n<Autodiscover xmlns="http://schemas.microsoft.com/exchange/autodiscover/responseschema/2006">\r\n  <Response xmlns="http://schemas.microsoft.com/exchange/autodiscover/outlook/responseschema/2006a">\r\n    <User>\r\n      <DisplayName>Servizio Data Governance BDA</DisplayName>\r\n      <LegacyDN>/o=Wind/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=30cb9e003a984ecab16ac41684388a50-Servizio Data Gover</LegacyDN>\r\n      <AutoDiscoverSMTPAddress>[mail_address]</AutoDiscoverSMTPAddress>\r\n      <DeploymentId>a97bb132-fdfa-4fba-876f-79442c336e12</DeploymentId>\r\n    </User>\r\n    <Account>\r\n      <AccountType>email</AccountType>\r\n      <Action>settings</Action>\r\n      <MicrosoftOnline>False</MicrosoftOnline>\r\n      <Protocol>\r\n        <Type>EXCH</Type>\r\n        <Server>9dd010c4-db51-45e2-a8b8-1d37b45950ef@[domain_name]</Server>\r\n        <ServerDN>/o=Wind/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Configuration/cn=Servers/cn=9dd010c4-db51-45e2-a8b8-1d37b45950ef@[domain_name]</ServerDN>\r\n        <ServerVersion>73C186B1</ServerVersion>\r\n        <MdbDN>/o=Wind/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Configuration/cn=Servers/cn=9dd010c4-db51-45e2-a8b8-1d37b45950ef@[domain_name]/cn=Microsoft Private MDB</MdbDN>\r\n        <PublicFolderServer>[public_server]</PublicFolderServer>\r\n        <AD>DCIVWR07.[domain_name]</AD>\r\n        <ASUrl>https://[public_server_name]/EWS/Exchange.asmx</ASUrl>\r\n        <EwsUrl>https://[public_server_name]/EWS/Exchange.asmx</EwsUrl>\r\n        <EmwsUrl>https://[public_server_name]/EWS/Exchange.asmx</EmwsUrl>\r\n        <SharingUrl>https://[public_server_name]/EWS/Exchange.asmx</SharingUrl>\r\n        <EcpUrl>https://[public_server_name]/owa/</EcpUrl>\r\n        <EcpUrl-um>?path=/options/callanswering</EcpUrl-um>\r\n        <EcpUrl-aggr>?path=/options/connectedaccounts</EcpUrl-aggr>\r\n        <EcpUrl-mt>options/ecp/PersonalSettings/DeliveryReport.aspx?rfr=olk&amp;exsvurl=1&amp;IsOWA=&lt;IsOWA&gt;&amp;MsgID=&lt;MsgID&gt;&amp;Mbx=&lt;Mbx&gt;&amp;realm=[realm]</EcpUrl-mt>\r\n        <EcpUrl-ret>?path=/options/retentionpolicies</EcpUrl-ret>\r\n        <EcpUrl-sms>?path=/options/textmessaging</EcpUrl-sms>\r\n        <EcpUrl-photo>?path=/options/myaccount/action/photo</EcpUrl-photo>\r\n        <EcpUrl-tm>options/ecp/?rfr=olk&amp;ftr=TeamMailbox&amp;exsvurl=1&amp;realm=[realm]</EcpUrl-tm>\r\n        <EcpUrl-tmCreating>options/ecp/?rfr=olk&amp;ftr=TeamMailboxCreating&amp;SPUrl=&lt;SPUrl&gt;&amp;Title=&lt;Title&gt;&amp;SPTMAppUrl=&lt;SPTMAppUrl&gt;&amp;exsvurl=1&amp;realm=[realm]</EcpUrl-tmCreating>\r\n        <EcpUrl-tmEditing>options/ecp/?rfr=olk&amp;ftr=TeamMailboxEditing&amp;Id=&lt;Id&gt;&amp;exsvurl=1&amp;realm=[realm]</EcpUrl-tmEditing>\r\n        <EcpUrl-extinstall>?path=/options/manageapps</EcpUrl-extinstall>\r\n        <OOFUrl>https://[public_server_name]/EWS/Exchange.asmx</OOFUrl>\r\n        <UMUrl>https://[public_server_name]/EWS/UM2007Legacy.asmx</UMUrl>\r\n        <OABUrl>https://[public_server_name]/OAB/95ecfb44-4ba6-46e0-88b1-8a6622de13e8/</OABUrl>\r\n        <ServerExclusiveConnect>off</ServerExclusiveConnect>\r\n      </Protocol>\r\n      <Protocol>\r\n        <Type>EXPR</Type>\r\n        <Server>[public_server_name]</Server>\r\n        <SSL>On</SSL>\r\n        <AuthPackage>Ntlm</AuthPackage>\r\n        <ASUrl>https://[public_server_name]/EWS/Exchange.asmx</ASUrl>\r\n        <EwsUrl>https://[public_server_name]/EWS/Exchange.asmx</EwsUrl>\r\n        <EmwsUrl>https://[public_server_name]/EWS/Exchange.asmx</EmwsUrl>\r\n        <SharingUrl>https://[public_server_name]/EWS/Exchange.asmx</SharingUrl>\r\n        <EcpUrl>https://[public_server_name]/owa/</EcpUrl>\r\n        <EcpUrl-um>?path=/options/callanswering</EcpUrl-um>\r\n        <EcpUrl-aggr>?path=/options/connectedaccounts</EcpUrl-aggr>\r\n        <EcpUrl-mt>options/ecp/PersonalSettings/DeliveryReport.aspx?rfr=olk&amp;exsvurl=1&amp;IsOWA=&lt;IsOWA&gt;&amp;MsgID=&lt;MsgID&gt;&amp;Mbx=&lt;Mbx&gt;&amp;realm=[realm]</EcpUrl-mt>\r\n        <EcpUrl-ret>?path=/options/retentionpolicies</EcpUrl-ret>\r\n        <EcpUrl-sms>?path=/options/textmessaging</EcpUrl-sms>\r\n        <EcpUrl-photo>?path=/options/myaccount/action/photo</EcpUrl-photo>\r\n        <EcpUrl-tm>options/ecp/?rfr=olk&amp;ftr=TeamMailbox&amp;exsvurl=1&amp;realm=[realm]</EcpUrl-tm>\r\n        <EcpUrl-tmCreating>options/ecp/?rfr=olk&amp;ftr=TeamMailboxCreating&amp;SPUrl=&lt;SPUrl&gt;&amp;Title=&lt;Title&gt;&amp;SPTMAppUrl=&lt;SPTMAppUrl&gt;&amp;exsvurl=1&amp;realm=[realm]</EcpUrl-tmCreating>\r\n        <EcpUrl-tmEditing>options/ecp/?rfr=olk&amp;ftr=TeamMailboxEditing&amp;Id=&lt;Id&gt;&amp;exsvurl=1&amp;realm=[realm]</EcpUrl-tmEditing>\r\n        <EcpUrl-extinstall>?path=/options/manageapps</EcpUrl-extinstall>\r\n        <OOFUrl>https://[public_server_name]/EWS/Exchange.asmx</OOFUrl>\r\n        <UMUrl>https://[public_server_name]/EWS/UM2007Legacy.asmx</UMUrl>\r\n        <OABUrl>https://[public_server_name]/OAB/95ecfb44-4ba6-46e0-88b1-8a6622de13e8/</OABUrl>\r\n        <ServerExclusiveConnect>on</ServerExclusiveConnect>\r\n        <CertPrincipalName>msstd:wmae.[cert].it</CertPrincipalName>\r\n        <EwsPartnerUrl>https://[public_server_name]/EWS/Exchange.asmx</EwsPartnerUrl>\r\n        <GroupingInformation>STMOLFETTA</GroupingInformation>\r\n      </Protocol>\r\n      <Protocol>\r\n        <Type>WEB</Type>\r\n        <Internal>\r\n          <OWAUrl AuthenticationMethod="Basic, Fba">https://[public_server_name]/owa/</OWAUrl>\r\n          <Protocol>\r\n            <Type>EXCH</Type>\r\n            <ASUrl>https://[public_server_name]/EWS/Exchange.asmx</ASUrl>\r\n          </Protocol>\r\n        </Internal>\r\n        <External>\r\n          <OWAUrl AuthenticationMethod="Fba">https://[public_server_name]/owa/</OWAUrl>\r\n          <Protocol>\r\n            <Type>EXPR</Type>\r\n            <ASUrl>https://[public_server_name]/EWS/Exchange.asmx</ASUrl>\r\n          </Protocol>\r\n        </External>\r\n      </Protocol>\r\n    </Account>\r\n  </Response>\r\n</Autodiscover>'

2020-09-04 10:12:24 DEBUG    No retry: wrong status code 200
2020-09-04 10:12:24 DEBUG    Session 29854 thread 140450161141504: Useful response from https://[server_name]/Autodiscover/Autodiscover.xml
2020-09-04 10:12:24 DEBUG    Server [server_name]: Releasing session 29854
2020-09-04 10:12:24 INFO     Step 5: Checking response
2020-09-04 10:12:24 DEBUG    Released autodiscover_cache_lock
2020-09-04 10:12:24 DEBUG    Waiting for _protocol_cache_lock
2020-09-04 10:12:24 DEBUG    Protocol __call__ cache miss. Adding key '('https://[public_server_name]/EWS/Exchange.asmx', Credentials('[domain]\[user]', '********'))'
2020-09-04 10:12:24 DEBUG    Requesting b'<?xml version=\'1.0\' encoding=\'utf-8\'?>\n<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" xmlns:m="http://schemas.microsoft.com/exchange/services/2006/messages" xmlns:t="http://schemas.microsoft.com/exchange/services/2006/types"><s:Header><t:RequestServerVersion Version="Exchange2019"/></s:Header><s:Body><m:ResolveNames ReturnFullContactData="false"><m:UnresolvedEntry>[domain]\[user]</m:UnresolvedEntry></m:ResolveNames></s:Body></s:Envelope>' from https://[public_server_name]/EWS/Exchange.asmx
2020-09-04 10:12:24 DEBUG    Trying to get service auth type for https://[public_server_name]/EWS/Exchange.asmx
2020-09-04 10:12:24 DEBUG    Starting new HTTPS connection (1): [public_server_name]:443
2020-09-04 10:12:24 DEBUG    https://[public_server_name]:443 "POST /EWS/Exchange.asmx HTTP/1.1" 401 0
2020-09-04 10:12:24 DEBUG    Request headers: {'User-Agent': 'exchangelib/3.2.0 (python-requests/2.24.0)', 'Accept-Encoding': 'gzip, deflate', 'Accept': '*/*', 'Connection': 'keep-alive', 'Content-Type': 'text/xml; charset=utf-8', 'Content-Length': '466'}
2020-09-04 10:12:24 DEBUG    Response headers: {'Server': 'Microsoft-IIS/8.5', 'WWW-Authenticate': 'Negotiate, NTLM', 'request-id': '5035ba0e-5caf-4b3d-8c39-07f76e04a0da', 'X-Powered-By': 'ASP.NET, ARR/3.0', 'X-FEServer': 'WIVEX02', 'Date': 'Fri, 04 Sep 2020 10:12:24 GMT', 'Content-Length': '0'}
2020-09-04 10:12:24 DEBUG    Auth type is NTLM
2020-09-04 10:12:24 DEBUG    Server [public_server_name]: Created session 25722
2020-09-04 10:12:24 DEBUG    Added account: [account_mail]

KO LOG:

2020-09-04 09:58:47 DEBUG    Waiting for autodiscover_cache lock
2020-09-04 09:58:47 DEBUG    autodiscover_cache lock acquired
2020-09-04 09:58:47 DEBUG    Server [server_name]: Created session 26384
2020-09-04 09:58:47 DEBUG    Cache hit for key ([domain_name], Credentials([domaint][user], '********')): https://[server_name]/Autodiscover/Autodiscover.xml
2020-09-04 09:58:47 DEBUG    Server [server_name]: Waiting for session
2020-09-04 09:58:47 DEBUG    Server [server_name]: Got session 26384
2020-09-04 09:58:47 DEBUG    Session 26384 thread 140624867845888: retry 0 timeout 10 POST'ing to https://[server_name]/Autodiscover/Autodiscover.xml after 10s wait
2020-09-04 09:58:47 DEBUG    Starting new HTTPS connection (1): [server_name]:443
2020-09-04 09:58:48 DEBUG    https://[server_name]:443 "POST /Autodiscover/Autodiscover.xml HTTP/1.1" 401 0
2020-09-04 09:58:48 DEBUG    https://[server_name]:443 "POST /Autodiscover/Autodiscover.xml HTTP/1.1" 502 1477
2020-09-04 09:58:48 ERROR    KeyError: 'www-authenticate'
Retry: 0
Waited: 10
Timeout: 10
Session: 26384
Thread: 140624867845888
Auth type: <requests_ntlm.requests_ntlm.HttpNtlmAuth object at 0x7fe5c41a37c0>
URL: https://[server_name]/Autodiscover/Autodiscover.xml
HTTP adapter: <requests.adapters.HTTPAdapter object at 0x7fe5c41a36d0>
Allow redirects: False
Streaming: False
Response time: 0.3348593030000302
Status code: 503
Request headers: {'Content-Type': 'text/xml; charset=utf-8', 'Accept-Encoding': 'gzip, deflate'}
Response headers: {}
Request data: b'<?xml version=\'1.0\' encoding=\'utf-8\'?>\n<Autodiscover xmlns="http://schemas.microsoft.com/exchange/autodiscover/outlook/requestschema/2006"><Request><EMailAddress>[email_address]</EMailAddress><AcceptableResponseSchema>http://schemas.microsoft.com/exchange/autodiscover/outlook/responseschema/2006a</AcceptableResponseSchema></Request></Autodiscover>'
Response data: b''

2020-09-04 09:58:48 DEBUG    Server [server_name]: Retiring session 26384
2020-09-04 09:58:48 DEBUG    Server [server_name]: Created session 26493
2020-09-04 09:58:48 DEBUG    Server [server_name]: Releasing session 26493

Please, can someone help me?

回答1:

I just pushed a commit that might fix this for you: https://github.com/ecederstrand/exchangelib/commit/c7b4b5a89c5518a6d19b7e88c5a945b9083b15d0

You need to use it in combination with a retry policy to paper over this internal error from requests_ntlm.

来源：https://stackoverflow.com/questions/63726671/exchangelib-error-in-python-www-authenticate

标签

python

exchangewebservices

exchangelib

exchangelib - All steps in the autodiscover protocol failed

泪湿孤枕 — Fri, 26 Jun 2020 23:21:19 +0000

exchangelib - All steps in the autodiscover protocol failed 泪湿孤枕 2020-06-27 07:21:19

问题

I have a problem with using exchangelib in python. I try this example code:

from exchangelib import DELEGATE, Account, Credentials

creds = Credentials(
    username='xxxx\\username', 
    password="mypassword"
)

account = Account(
    primary_smtp_address='surname.name@xxxx.fr',
    credentials=creds, 
    autodiscover=True, 
    access_type=DELEGATE
)

# Print first 10 inbox messages in reverse order
for item in account.inbox.all().order_by('-datetime_received')[:10]:
    print(item.subject, item.body, item.attachments)

I tried differents usernames but nothing works and I have always the same error message :

AutoDiscoverFailed: All steps in the autodiscover protocol failed

By the way, just in case it could help, i tried to use the Exchange Web service coded for C# and it works perfectly fine with this creds, i can send a mail:

static void Main(string[] args)
{
    ExchangeService service = new ExchangeService(ExchangeVersion.Exchange2010_SP2);
    // The last parameter is the domain name
    service.Credentials = new WebCredentials("username", "password", "xxxx.lan");
    service.AutodiscoverUrl("surname.name@xxxx.fr", RedirectionUrlValidationCallback);
    EmailMessage email = new EmailMessage(service);
    email.ToRecipients.Add("surname.name@xxxx.fr");
    email.Subject = "salut ";
    email.Body = new MessageBody("corps du message");
    email.Send();
}

private static bool RedirectionUrlValidationCallback(string redirectionUrl)
{
    // The default for the validation callback is to reject the URL.
    bool result = false;

    Uri redirectionUri = new Uri(redirectionUrl);

    /* Validate the contents of the redirection URL. In this simple validation
       callback, the redirection URL is considered valid if it is using HTTPS
       to encrypt the authentication credentials. */
    if (redirectionUri.Scheme == "https")
    {
        result = true;
    }
    return result;
}

Thanks in advance !

回答1:

I finally succeed with this configuration:

from exchangelib import DELEGATE, Account, Credentials, Configuration

creds = Credentials(
    username="domain_name\\username", 
    password="password"
)

config = Configuration(server='mail.solutec.fr', credentials=creds)

account = Account(
    primary_smtp_address="my email address",
    autodiscover=False, 
    config=config,
    access_type=DELEGATE
)

For those who will have the same problem, you can find your domain_name by right-clicking on "Computer" and Properties. Username and Password are the one you use to connect to your company mailbox for example. For the server in Configuration, for me this one works: "mail.solutec.fr", where solutec is the name of my company and fr for France.

Looks like this autodiscover guy really doesn't like me ^^

Thanks for your help anyway and have a good day !

来源：https://stackoverflow.com/questions/46525041/exchangelib-all-steps-in-the-autodiscover-protocol-failed

标签

SSL: CERTIFICATE_VERIFY_FAILED when connecting to a company Exchange Server

雨燕双飞 — Mon, 13 Jan 2020 20:08:46 +0000

SSL: CERTIFICATE_VERIFY_FAILED when connecting to a company Exchange Server 雨燕双飞 2020-01-14 04:08:46

问题

I try to send mails from out company exchange server via Python. My problem is, that I get a SSL error. I read a lot of pem-, cer-, crt-files, but I can not connect all these information to have success. I am sure, that if one can fix the issue in my little example script, one could fix the exchange script, too.

I read a lot about certificates and ca_bundles, but I don't know how to apply all of that to my issue.

Example-Script:

import requests
requests.get('https://mail.ourserver.loc')

Error:

C:\Python\python.exe "PATHtoMYproject/testing.py"
Traceback (most recent call last):
  File "C:\Python\lib\site-packages\urllib3\contrib\pyopenssl.py", line 441, in wrap_socket
    cnx.do_handshake()
  File "C:\Python\lib\site-packages\OpenSSL\SSL.py", line 1806, in do_handshake
    self._raise_ssl_error(self._ssl, result)
  File "C:\Python\lib\site-packages\OpenSSL\SSL.py", line 1546, in _raise_ssl_error
    _raise_current_error()
  File "C:\Python\lib\site-packages\OpenSSL\_util.py", line 54, in exception_from_error_queue
    raise exception_type(errors)
OpenSSL.SSL.Error: [('SSL routines', 'tls_process_server_certificate', 'certificate verify failed')]

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  [.. a lot of text..]
ssl.SSLError: ("bad handshake: Error([('SSL routines', 'tls_process_server_certificate', 'certificate verify failed')],)",)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  [.. a lot of text..]
urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='mail.ourserver.loc', port=443): Max retries exceeded with url: / (Caused by SSLError(SSLError("bad handshake: Error([('SSL routines', 'tls_process_server_certificate', 'certificate verify failed')],)",),))

Exchange-Script:

from exchangelib import DELEGATE, Account, Credentials, Configuration, Message

import os

import urllib3
urllib3.disable_warnings()

creds = Credentials(username='EX\\GE-USR', password='secret')
config = Configuration(server='mail.ourserver.loc', credentials=creds)
account = Account(primary_smtp_address="user-name@ex-ample.com", autodiscover=False, config=config,
                  access_type=DELEGATE)

def send(email_receiver):
    m = Message(
        account=account,
        subject='This is a test!',
        body='Hallo',
        to_recipients=[email_receiver])
    m.send_and_save()

receiver = 'user-name@ex-ample.com'

send(email_receiver=receiver)

print('Finish')

Error:

C:\Python\python.exe "PATHtoMYproject//exchange_main.py"
Traceback (most recent call last):
  File "C:\Python\lib\site-packages\urllib3\contrib\pyopenssl.py", line 441, in wrap_socket
    cnx.do_handshake()
  File "C:\Python\lib\site-packages\OpenSSL\SSL.py", line 1806, in do_handshake
    self._raise_ssl_error(self._ssl, result)
  File "C:\Python\lib\site-packages\OpenSSL\SSL.py", line 1546, in _raise_ssl_error
    _raise_current_error()
  File "C:\Python\lib\site-packages\OpenSSL\_util.py", line 54, in exception_from_error_queue
    raise exception_type(errors)
OpenSSL.SSL.Error: [('SSL routines', 'tls_process_server_certificate', 'certificate verify failed')]

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
[.. a lot of text..]
ssl.SSLError: ("bad handshake: Error([('SSL routines', 'tls_process_server_certificate', 'certificate verify failed')],)",)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Python\lib\site-packages\requests\adapters.py", line 440, in send
    timeout=timeout
  File "C:\Python\lib\site-packages\urllib3\connectionpool.py", line 639, in urlopen
    _stacktrace=sys.exc_info()[2])
  File "C:\Python\lib\site-packages\urllib3\util\retry.py", line 388, in increment
    raise MaxRetryError(_pool, url, error or ResponseError(cause))
urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='mail.ourserver.loc', port=443): Max retries exceeded with url: /EWS/Exchange.asmx (Caused by SSLError(SSLError("bad handshake: Error([('SSL routines', 'tls_process_server_certificate', 'certificate verify failed')],)",),))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
[.. a lot of text..]
requests.exceptions.ConnectionError: HTTPSConnectionPool(host='mail.ourserver.loc', port=443): Max retries exceeded with url: /EWS/Exchange.asmx (Caused by SSLError(SSLError("bad handshake: Error([('SSL routines', 'tls_process_server_certificate', 'certificate verify failed')],)",),))

Process finished with exit code 1url: /EWS/Exchange.asmx (Caused by SSLError(SSLError("bad handshake: Error([('SSL routines', 'tls_process_server_certificate', 'certificate verify failed')],)",),))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  [.. a lot of text..]
requests.exceptions.ConnectionError: HTTPSConnectionPool(host='mail.ourserver.loc', port=443): Max retries exceeded with url: /EWS/Exchange.asmx (Caused by SSLError(SSLError("bad handshake: Error([('SSL routines', 'tls_process_server_certificate', 'certificate verify failed')],)",),))

Process finished with exit code 1

回答1:

I got it to work. I uninstalled pyopenssl and the error of my Example-Script changed to this:

requests.exceptions.SSLError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:777)

Then I found some useful commands to get into the pem-file topic. Basically, I just had to add the certificate in order to solve my problem. Most people said that I have to add my certificate to a pem-file like cacert.pem, but it is possible that you have several modules installed that use different files. I found this topic very useful to find out the location of my cacert.pem file: LINK_1 e. g.:

python -c "import requests; print requests.certs.where()"

Next I had the problem, that I didn't have a certificate to add to the pem-file. Somehow my browser was able to send a https request, so the browser was able to use a certificate from windows. This link brought the solution.

import ssl

context = ssl.create_default_context()
der_certs = context.get_ca_certs(binary_form=True)
pem_certs = [ssl.DER_cert_to_PEM_cert(der) for der in der_certs]

with open('wincacerts.pem', 'w') as outfile:
    for pem in pem_certs:
        outfile.write(pem + '\n')

I exported the certificate from windows and added the file to my request-script:

import os
import requests

root_path = os.getcwd()
path_pem=os.path.join(root_path, 'wincacerts.pem')
requests.get('https://mail.ourserver.loc', verify=path_pem)

Back to my exchange script I added these lines to the beginning and added my certificate. I simply renamed the file from .pem to .crt. I was then able to send an email via the exchange server to myself.

root_path = os.getcwd()
path_pem=os.path.join(root_path, 'files', 'wincacerts.crt')

class RootCAAdapter(requests.adapters.HTTPAdapter):
    # An HTTP adapter that uses a custom root CA certificate at a hard coded location
    def cert_verify(self, conn, url, verify, cert):
        cert_file = {
            'mail.ourserver.loc': path_pem,
            'mail.internal': '/path/to/mail.internal.crt'
            }[urlparse(url).hostname]
        super(RootCAAdapter, self).cert_verify(conn=conn, url=url, verify=cert_file, cert=cert)

# Tell exchangelib to use this adapter class instead of the default
BaseProtocol.HTTP_ADAPTER_CLS = RootCAAdapter

来源：https://stackoverflow.com/questions/51262568/ssl-certificate-verify-failed-when-connecting-to-a-company-exchange-server

标签

How can I get the latest emails from all folders with exchangelib?

99封情书 — Sat, 04 Jan 2020 08:56:54 +0000

How can I get the latest emails from all folders with exchangelib? 99封情书 2020-01-04 16:56:54

问题

Currently, I use

latest_mails = account.inbox.filter(datetime_received__gt=emails_since)

But it seems to miss received emails which are in subfolders.

Printing all folders with

for f in account.root.get_folders():
    print(f)

gives something like

Calendar (Kalender)
Contacts (Kontakte)
Contacts (Vorgeschlagene Kontakte)
Folder (AllItems)
Folder (Calendar Logging)
Folder (Common Views)
Folder (Conversation Action Settings)
Folder (Deferred Action)
Folder (Deletions)
Folder (Erinnerungen)
Folder (ExchangeSyncData)
Folder (Finder)
Folder (Infected Items)
Folder (Journal)
Folder (Location)
Folder (MailboxAssociations)
Folder (Notizen)
Folder (Recipient Cache)
Folder (Recoverable Items)
Folder (Schedule)
Folder (Shortcuts)
Folder (Spooler Queue)
Folder (System)
Folder (Versions)
Folder (Views)
Folder (WorkingSet)
Messages (Postausgang)
Messages (Posteingang)
Messages (foo)
Messages (bar)
Messages (something is)
Messages (here)
Messages (Gelöschte Elemente)
Messages (Gesendete Elemente)
Messages (Junk-E-Mail)
Messages (Meine Kontakte)
Messages (MyContactsExtended)
Messages (Nachverfolgte E-Mail-Verarbeitung)
Messages (Zugang)
Tasks (Aufgaben)
Tasks (Aufgabensuche)

So I only want to look at the "Messages" folders, but at all of them. Is that possible (without using account.root.get_folders()) and looping over the results (which took about 5 minutes)

回答1:

You're correct that .filter() only works on the folder you call it on, not subfolders. I'm pretty sure EWS only supports searching one folder at a time.

You should be able to do something like this to speed things up a little bit:

from exchangelib.folders import Messages

for f in account.folders[Message]:
    for i in f.filter(datetime_received__gt=emails_since):
        print(i)

But Folder type folders can also contain Message items, so depending on your needs you may also have to visit those.

f.supported_item_models will tell you which item types a given folder can contain.

来源：https://stackoverflow.com/questions/45935701/how-can-i-get-the-latest-emails-from-all-folders-with-exchangelib

标签

exchangelib

Python exchangelib: check if item is a message or not

Deadly — Sun, 22 Dec 2019 18:45:11 +0000

Python exchangelib: check if item is a message or not Deadly 2019-12-23 02:45:11

问题

I got an error when retrieve items using exchangelib. Is there any method to detect whether the item is an email, and if not, just ignore it? The following code raises AttributeError: 'MeetingRequest' object has no attribute 'flag') since meeting requests don't have a flag field. Or is there any method to view the type of the item?

import re
import sys
from exchangelib import DELEGATE, IMPERSONATION, Account, Credentials, ServiceAccount, \
    EWSDateTime, EWSTimeZone, Configuration, NTLM, CalendarItem, Message, \
    Mailbox, Attendee, Q, ExtendedProperty, FileAttachment, ItemAttachment, \
    HTMLBody, Build, Version

from datetime import datetime, timedelta
import pytz

tz = EWSTimeZone.timezone('Asia/Hong_Kong')

creds = Credentials(
    username='domain\userID', 
    password='password')
)
account = Account(
    primary_smtp_address='myemail@domain',
    credentials=creds, 
    autodiscover=True, 
    access_type=DELEGATE)

class Flag(ExtendedProperty):
    property_tag = 0x1090
    property_type = 'Integer'

Message.register('flag', Flag)  


if(len(sys.argv) == 1):
    yesterday = tz.localize(EWSDateTime.now() - timedelta(days=3))
    today = tz.localize(EWSDateTime.now())
    fYear= yesterday.year
    fMonth= yesterday.month
    fDay= yesterday.day
    tYear = today.year
    tMonth = today.month
    tDay = today.day
elif(len(sys.argv) == 3):
    fromDate = sys.argv[1]
    toDate = sys.argv[2]
    fYear = fromDate[:4]
    fMonth = fromDate[4:6]
    fDay = fromDate[-2:]
    tYear = toDate[:4]
    tMonth = toDate[4:6]
    tDay = toDate[-2:]

for item in account.inbox.filter(datetime_received__range=(
    #tz.localize(EWSDateTime.now() - timedelta(days=1)),
    #tz.localize(EWSDateTime.now())
    tz.localize(EWSDateTime(int(fYear), int(fMonth), int(fDay))),
    tz.localize(EWSDateTime(int(tYear), int(tMonth), int(tDay)))
    )):
    subA=item.subject
    snd=item.sender.email_address
    fg=str(item.flag)
str(item.datetime_received.astimezone(pytz.timezone('Asia/Hong_Kong')).strftime("%a %b %d %H:%M:%S %Y"))
        rT = str(item.datetime_received.astimezone(pytz.timezone('Asia/Hong_Kong')).strftime("%Y-%m-%d %H:%M:%S"))
        cat=str(item.categories)
        if not subA:
            subA=""
            a="\"Inbox\",\""+snd+"\",\""+subA+"\",\""+rT+"\",\""+cat+"\",\""+fg+"\""
            print(a)
        else:
            subA = re.sub('\"\,\"', '\\"\,\\"', subA.rstrip())
            a="\"Inbox\",\""+snd+"\",\""+subA+"\",\""+rT+"\",\""+cat+"\",\""+fg+"\""
            decoded = a.encode('utf-8').decode('utf-8')
            print(decoded)

回答1:

Just check the class of the returned item: if type(item) == Message and ignore the ones that don't match.

If you want to avoid the cause of the error, you need to also register the flag property on the MeetingRequest class (and MeetingResponse and MeetingCancellation if you have those in your folder).

来源：https://stackoverflow.com/questions/49013158/python-exchangelib-check-if-item-is-a-message-or-not

标签

python

exchangelib

Mark email as read with exchangelib

女生的网名这么多〃 — Sat, 21 Dec 2019 21:37:19 +0000

Mark email as read with exchangelib 女生的网名这么多〃 2019-12-22 05:37:19

问题

I am using Pythons exchangelib package. How can I mark an e-mail as read with exchangelib?

I have had a look at the official GitHub exchangelib page for my query, but didn't find the answer.

回答1:

To add to joe's comment, you must also 'save' the item for the flag to be permanent.

item.is_read = True
item.save()

回答2:

To add to HeroicOlive's comment, if you specifically want to save the is_read value only, try:

item.is_read = True
item.save(update_fields=['is_read'])

回答3:

item.is_read = True should do the trick where item is the message you want to mark read

来源：https://stackoverflow.com/questions/45037322/mark-email-as-read-with-exchangelib

标签

python

python-2.7

exchangelib

How can I send attachments in an email reply?

只愿长相守 — Tue, 10 Dec 2019 23:05:07 +0000

How can I send attachments in an email reply? 只愿长相守 2019-12-11 07:05:07

问题

I'm using the exchangelib package to connect to Exchange. I need to send attachments in a reply. When I send a normal message I add the attachment to the Message object like this:

message = Message()
message.account = account
message.subject = 'subject'
message.body = 'text'
message.to_recipients = [Mailbox(email_address='example@gmail.com')]
message.cc_recipients = ['example2@gmail.com']

for attachment in attachments or []:
    with open(attachment['path'], 'rb') as f:
        file = FileAttachment(name=attachment['file_name'], content=f.read())
        message.attach(file)

and to send a reply:

reply = message.reply(
    subject='Re: subject',
    body='texto',
    to_recipients=['example@gmail.com']
)

This works, but I don't now how to add attachments to the reply. I tried to set the attributes "attachments" and "attach" but the object doesn't have them.

回答1:

The Message.reply() method creates and sends a ReplyToItem item which doesn't support attachments. See https://docs.microsoft.com/en-us/exchange/client-developer/web-service-reference/replytoitem

So if you want to send a reply that has attachments, just create a normal Message item that has a 'Re: some subject' title, contains the attachment, and quotes the original message, if that's needed.

来源：https://stackoverflow.com/questions/52628766/how-can-i-send-attachments-in-an-email-reply

标签

Python/exchangelib - How to access shared public folders and calendars

烂漫一生 — Tue, 10 Dec 2019 03:42:23 +0000

Python/exchangelib - How to access shared public folders and calendars 烂漫一生 2019-12-10 11:42:23

问题

How can I connect to a shared public folder using exchangelib?

from exchangelib import DELEGATE, IMPERSONATION, Account, Credentials, ServiceAccount, \
    EWSDateTime, EWSTimeZone, Configuration, NTLM, CalendarItem, Message, \
    Mailbox, Attendee, Q, ExtendedProperty, FileAttachment, ItemAttachment, \
    HTMLBody, Build, Version

credentials = Credentials(username='DOMAIN\\username', password='password')
config = Configuration(server='server', credentials=credentials, auth_type=NTLM, verify_ssl=False)
account = Account(primary_smtp_address='user@email.com', config=config, autodiscover=False, access_type=DELEGATE)

for i in account.root.get_folders():
    print(i)

When I run the code above I get the output shown below. I'm pretty sure none of these options correspond to a shared public folder.

Folder (AllItems)

Folder (Common Views)

Folder (Deferred Action)

Folder (ExchangeSyncData)

Folder (Finder)

Folder (Freebusy Data)

Folder (RCA_EWSSyncTestFolder)

Folder (Recoverable Items)

Folder (Deletions)

Folder (Purges)

Folder (Versions)

Folder (Reminders)

Folder (Schedule)

Messages (Sharing)

Folder (Shortcuts)

Folder (Spooler Queue)

Folder (System)

Tasks (To-Do Search)

Folder (Top of Information Store)

Calendar (Calendar)

Contacts (Contacts)

Folder (Conversation Action Settings)

Messages (Deleted Items)

Folder (Spam)

Messages (Drafts)

Messages (Inbox)

Messages (Archive)

Folder (Suspected Spam)

Folder (Journal)

Messages (Junk E-Mail)

Folder (Notes)

Messages (Outbox)

Folder (Quick Step Settings)

Folder (RSS Feeds)

Messages (Sent Items)

Messages (Sync Issues)

Messages (Conflicts)

Messages (Local Failures)

Messages (Server Failures)

Tasks (Tasks)

Folder (Transport Queue)

Folder (Views)

来源：https://stackoverflow.com/questions/44958544/python-exchangelib-how-to-access-shared-public-folders-and-calendars

标签

python

exchangewebservices

exchangelib

Read emails and download attachment from Microsoft Exchange Server

安稳与你 — Sun, 08 Dec 2019 01:31:23 +0000

Read emails and download attachment from Microsoft Exchange Server 安稳与你 2019-12-08 09:31:23

问题

connect-to-exchange-mailbox-with-python/3072491....I have refereed the following link to connect to Exchange Online and download attachments and read mails on windows(using Python and exchangelib library). Now I want to accomplish the same task on CentOS but when I manually download the exchangelib library and install it. Whenever I try to import exchangelib, it throws an error like:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "exchangelib/__init__.py", line 2, in <module>
    from .account import Account  # noqa
  File "exchangelib/account.py", line 8, in <module>
    from cached_property import threaded_cached_property
ImportError: No module named cached_property

What might be the problem?

My main objective is to read emails and download them. No imap/pop3 server address is available. Is there an alternative to exchangelib?

from exchangelib import DELEGATE, Account, Credentials

credentials = Credentials(
    username='MYWINDOMAIN\\myusername', 
    password='topsecret'
)
account = Account(
    primary_smtp_address='john@example.com', 
    credentials=credentials, 
    autodiscover=True, 
    access_type=DELEGATE
)
# Print first 100 inbox messages in reverse order
for item in account.inbox.all().order_by('-datetime_received')[:100]:
    print(item.subject, item.body, item.attachments)

I have used this code in Windows. Help me out with Linux.

回答1:

This is how you read all emails and store all attachments with exchangelib:

from exchangelib import ServiceAccount, Configuration, Account, DELEGATE
import os

from config import cfg


credentials = ServiceAccount(username=cfg['imap_user'],
                             password=cfg['imap_password'])

config = Configuration(server=cfg['imap_server'], credentials=credentials)
account = Account(primary_smtp_address=cfg['smtp_address'], config=config,
                  autodiscover=False, access_type=DELEGATE)


unread = account.inbox.filter()   # returns all mails
for msg in unread:
    print(msg)
    print("attachments       ={}".format(msg.attachments))
    print("conversation_id   ={}".format(msg.conversation_id))
    print("last_modified_time={}".format(msg.last_modified_time))
    print("datetime_sent     ={}".format(msg.datetime_sent))
    print("sender            ={}".format(msg.sender))
    print("text_body={}".format(msg.text_body.encode('UTF-8')))
    print("#" * 80)
    for attachment in msg.attachments:
        fpath = os.path.join(cfg['download_folder'], attachment.name)
        with open(fpath, 'wb') as f:
            f.write(attachment.content)

Related: How can I send an email with an attachment with Python and Microsoft Exchange?

回答2:

exchangelib depends on various 3rd party packages, so you can't just download and import the package. You need to install it using pip to get these packages installed automatically:

$ pip install exchangelib

来源：https://stackoverflow.com/questions/43491673/read-emails-and-download-attachment-from-microsoft-exchange-server

标签

Python/exchangelib - How to access shared public folders and calendars

孤人 — Sat, 07 Dec 2019 11:25:30 +0000

Python/exchangelib - How to access shared public folders and calendars 孤人 2019-12-07 19:25:30

How can I connect to a shared public folder using exchangelib?

from exchangelib import DELEGATE, IMPERSONATION, Account, Credentials, ServiceAccount, \
    EWSDateTime, EWSTimeZone, Configuration, NTLM, CalendarItem, Message, \
    Mailbox, Attendee, Q, ExtendedProperty, FileAttachment, ItemAttachment, \
    HTMLBody, Build, Version

credentials = Credentials(username='DOMAIN\\username', password='password')
config = Configuration(server='server', credentials=credentials, auth_type=NTLM, verify_ssl=False)
account = Account(primary_smtp_address='user@email.com', config=config, autodiscover=False, access_type=DELEGATE)

for i in account.root.get_folders():
    print(i)

When I run the code above I get the output shown below. I'm pretty sure none of these options correspond to a shared public folder.

Folder (AllItems)

Folder (Common Views)

Folder (Deferred Action)

Folder (ExchangeSyncData)

Folder (Finder)

Folder (Freebusy Data)

Folder (RCA_EWSSyncTestFolder)

Folder (Recoverable Items)

Folder (Deletions)

Folder (Purges)

Folder (Versions)

Folder (Reminders)

Folder (Schedule)

Messages (Sharing)

Folder (Shortcuts)

Folder (Spooler Queue)

Folder (System)

Tasks (To-Do Search)

Folder (Top of Information Store)

Calendar (Calendar)

Contacts (Contacts)

Folder (Conversation Action Settings)

Messages (Deleted Items)

Folder (Spam)

Messages (Drafts)

Messages (Inbox)

Messages (Archive)

Folder (Suspected Spam)

Folder (Journal)

Messages (Junk E-Mail)

Folder (Notes)

Messages (Outbox)

Folder (Quick Step Settings)

Folder (RSS Feeds)

Messages (Sent Items)

Messages (Sync Issues)

Messages (Conflicts)

Messages (Local Failures)

Messages (Server Failures)

Tasks (Tasks)

Folder (Transport Queue)

Folder (Views)

来源：https://stackoverflow.com/questions/44958544/python-exchangelib-how-to-access-shared-public-folders-and-calendars

标签

python

exchangewebservices

exchangelib