However when doing the test-outlookwebsirvices test I still get an error for autodiscover 401 unathorized. thanks for your help. For much assistance, you can contact the technical team which is available to you 24*7. . and when the first one invokes the above code, it is successful, same code is being triggered by second IDs (Just passing the second mail ID) getting 401 unauthorized error. Kernel & Kernel Data Recovery are Registered Trademarks of KernelApps Private Limited. Login or at Microsoft.Exchange.Management.SystemConfigurationTasks.ServiceValidatorBase.Invoke() Updated my nginx configuration, following this template. I haven't tried the external autodiscover before we had M365. 1. 3.Please run the following command to check the authentication of the Autodiscover, and check the authentication methods in IIS. Here we have implemented autodiscover service to get the URI using network credentials. User-Agent: MINK/Test-OutlookWebServices/extest_f22daf6127864@companyLongName.com.au It may need some time for us to troubleshoot this problem. I'll try that today, I hope that's not the issue. xmlns="http://schemas.microsoft.com/exchange/autodiscover/outlook/requestschema/2006"> EAD4AQAAFYKI4gYDgCUAAAAP4nt+LP/CrcfEHdVgFPVbiWUAeAB0AGUAcwB0AF8AZgAyADIAZABhAGYANgAxADIANwA4ADYAN I didn't really find anything since there are so many entries. (It also happens to local users too tho), Embedded image is a bit small so:https://imgur.com/a/hAQSkUw. ", it seems that you typed an incorrect username or password in the input page, or Outlook is attempting to access Office 365. Your email address will not be published. Enroll into Multi-Factor Authentication (MFA) before November 28, 2022. Attachments: Up to 10 attachments (including images) can be used with a maximum of 3.0 MiB each and 30.0 MiB total. I'll report back as soon as I know more! Do you mind sharing your nginx config for Exchange? jrp78 Thanks for the post! Also deleted and recreated my autodiscover vd. extest_f22daf6127864 as this seems not to have accecc. Factors to be Considered Before Choosing an Office 365 Migration Tool, Office 365 Migration Stuck on Syncing/Completing, Avoid these Most Common Office 365 Deployment Mistakes, Office 365 Shared Mailbox not Showing in Outlook, Common Office 365 Problems and their Solutions. Any help would be really great, suggestions, logs etc. If you are facing this kind of error, then there may be multiple reasons behind this issue. I actually saw this article, though we are already using NS 12.0, plus are using Outlook 2013 clients. ---> System.Net.WebException: The remote server returned an error: (401) Unauthorized. tell from your data dump what you're doing in that regard. Content-Length: 482 ServerFQDN Offline Address Book [2016-04-06 02:01:13Z] Autodiscover request: However when doing the test-outlookwebsirvices test I still get an error for autodiscover 401 unathorized. Microsoft.Exchange.Management.SystemConfigurationTasks.ServiceValidatorBase.InternalInvoke() Skipped 0 I'm pretty sure that the following changes to my nginx configuration fixed my login issues: Besides that I also had to enable basic authentication for EWS and MAPI, which was disabled at first. It is, however not a relevant Free/Busy test per se, as it uses Basic authentication and not Federated authentication used in actual Free/Busy lookups. How to Convert Gmail Emails to PDF Files? Autodiscover to https://domain.com/autodiscover/autodiscover.xml Failed (0x80070057) Follow, to receive updates on this topic. https://autodscover.company.com.au, now internal clients can't access their mailboxes. Verbose : [2016-04-06 02:01:13Z] Autodiscover connecting to This is usually the result of an incorrect username or password. I've published HTTP and HTTPS and can reach OWA without any problems, but when I test ActiveSync with testconnectivity.microsoft.com I get the following error: Attempting to send an Autodiscover POST request to potential Autodiscover URLs. I've been trying for a week to fix it.We've published our Exchange 2016 directories (on Windows Server 2016) through nginx (on Ubuntu 20.04.1 LTS). or check out the Microsoft Exchange forum. 1) Please check your DNS record, include A, MX and CNAME. If the Office 365 has multi-factor authentication enabled for the account, this it is not easy for a manual method to access the mailbox easily. Hi @GerritDeike-4584 ,I'm glad to hear that your issue has been resolved.Thank you for sharing the root cause of the problem, this will help other members of the forum who have similar problems. weight = 0 This is usually the result of an incorrect username or password. 401 Unauthorized is an authentication error and is generally the result of MigrationWiz being unable to connect to the specified environment using either the admin credentials within your endpoint or the end-user credentials. I can't Try to check complete detail of the batch migration and edit the information. I've tried that and still doesn't work same issue. Purchasing laptops & equipment After reading serveral whitepapers and blogs this should be the correct configuration: This is the result of the Microsoft Remote Connectivity Tool: The Microsoft Connectivity Analyzer is attempting to retrieve an XML Autodiscover response from URL https://autodiscover.domain.de:443/Autodiscover/Autodiscover.xml for user test@domain.de. https://community.spiceworks.com/topic/2281032-outlook-autodiscover-popup. If you're using both in URLs, then your certificate has to have both. Skipped 0, [PS] C:\Windows\system32>Test-OutlookWebServices | fl I have the same issue with the Microsoft Connectivity Analyzer and Autodiscover. Any ideas how I can fix this problem? The remote server returned an error: (401) Unauthorized. I've tried the following usernames: Hi When you get a new URL in an Autodiscover redirect response, you should first validate the URL as follows: Verify that the URL is an HTTPS URL. I'll continue to monitor. > _autodiscover._tcp.domain.net Many times, the user creates an Office 365 account and try to start the migration instantly. The following steps will go through each of the most common causes of this error. Click on the Manage Security Defaultsoption and set Enable Security Settingsto NO. Skipped 0 Product (s): eDiscovery Platform Problem When performing a collection from eDP v8.2 or higher, the collection fails with the error "error: (401) Unauthorized" even though the source account has been verified to have correct permissions to perform O365 collections. this report comes from CompA, with credentials of UserA. But credentials are working. Check if the typed username and password of the test account are correct, and run an Email Auto Configuration test from Outlook to check if Outlook is attempting to lookup for Office 365 SCP. I think it's the " Search the forums for similar questions You can use Microsoft ADFS and WAP it is fully supported, the better option is to get a web application firewall like F5 or FortiWeb. However when I run the test commandslike test-owaconnectivity i get the following error. But I've tried accounts that were not synced to M365 so I doubt that could affect it. If you are attempting to log onto an Office 365 service, ensure you are using your full User Principal Name (UPN). To use our site, please take one of the following actions: Thank you, Type in the autodiscover URL and see what happens. NetScaler Application Delivery Controller, Exchange Autodiscover with 401 Authentication. Thanks for all your inputs and help tho, you put me on the right track! When opening the URL from an external connection, the site will ask for a password over and over again, but won't proceed to the XML. I recently started as a remote manager at a company in a growth cycle. 'https://autodiscover.companyLongName.com.au/autodiscover/autodiscover.xml'. this is a screenshot take by Fiddler for a real life example with office 365; Client will get back a response with two HTTPS URLs in it . You can find more information, Install the Firefox browser. It has become a dominant player in the cloud business and businesses are migrating their data at a rapid speed. Click. As far as I know, I shouldn't expose my exchange server like that, what would you guys recommend as a reverse proxy? 2. The provider didn't configure the DNS-entries as I told them to and are doing some kind of weird re-direct that doesn't work with Outlook Anywhere and ActiveSync. The remote server returned an error: (401) Unauthorized. At this point because the AUtodiscover is giving an error of 401, the outlookwebservice connectivity test is also unable to retrieve the url for ews and oab. Copyright 2022 KernelApps Private Limited. Flashback: Back on November 3, 1937, Howard Aiken writes to J.W. Bappy We do have MFA activated for our M365 accounts but they're not used to connect to exchange. An HTTP 401 Unauthorized response was received from the remote Unknown server. Error Message Error found in "ExchangeAutoDiscovery_output.log": If the Password of the Administrator account is too complicated, then reset it. Your daily dose of tech news, in brief. Especially CNAME, make sure to point to the correct server.2) You also could following the format to create a SRV record:Service: _autodiscoverProtocol: ._tcpPort Number: 443Host: mail.contoso.comThe Outlook server namespace is mail.contoso.com.For more information you could refer to:Autodiscover in DNS. Mailbox logon returned EcLoginFailure -2147221231. After successful installation, run the software and click the, Input the credentials of the source account and click the, The tool will enlist all the accounts associated with the Administrator account. Is their anything that I can look at any suggestions. This is usually the result of an incorrect username or password. Changes have been made to the autodiscover internaluri, which reflects the company name i.e. --> The remote server returned an error: (401) Unauthorized. Hi, I stumbled on this thread looking for a waf option for Exchange. If you are attempting to log onto an Office 365 service, ensure you are using your full User Principal Name (UPN). UAAAAAAAAAAAAAAAAABO5PZQ5JkwlWc63arBBmog== at Microsoft.Exchange.Management.SystemConfigurationTasks.ServiceValidatorBase.Invoke(), We are running Exchange 2013 CU11 as a VM running on VMWare vSphere 5.5. Resolving this issue will sort out the other issue. Exception message is The request failed. Hey SW community,I know that there have been a few topics discussing this issue already, but none of the solutions fixed it so far for me. quick update. ServerFQDN Availability Service The Microsoft Connectivity Analyzer failed to obtain an Autodiscover XML response. Do you have some type of MFA setup that is not working correctly? RunspaceId : be76ebc0-f8ca-486a-bb28-743b889d9431 WARNING: Test user 'extest_f22daf6127864' isn't accessible, so this cmdlet won't be able to test Client Access server The Citrix Discussions Team. ServerFQDN autodiscover.companyLongName.sa.edu.au Autodiscover: Outlook Provider Failure 12 When I runNew-TestCASConnectivityUser.ps1 it goes through fine. This is usually the result of an incorrect username or password. Didn't find what you were looking for? The remote server returned an error: (401) Unauthorized. But if you still are facing the same error due to UPN settings and there is no manual method to solve the problem, then use a professional tool which can bypass all the technicalities and perform the migration on your terms. 2.Please run the following command to check if your Autodiscover url is correct. Error : System.Net.WebException: The remote server returned an error: (401) Unauthorized. sign up to reply to this topic. The error is following: The request failed. I have disabled annonymous and users are able to log into their outlook client. HiDino1354 - sorry mate, I don't check Spiceworks that often. Left side is the internal autodiscover response; right side is the external and internal log. Test-OutlookWebServices works.I've also looked at the following threads:- https://community.spiceworks.com/topic/2198860-exchange-2016-autodiscover-failure-401-unauthorized-s (Created BackConnectionHostNames but that didn't really do anything besides unbinding my back end certifiate for exchange)- https://social.technet.microsoft.com/Forums/ie/en-US/f1c6b257-6d8c-4701-87c8-d332cb17cbc7/exchange-2 - (Kernel mode was already disabled)- https://www.reddit.com/r/exchangeserver/comments/75p99q/autodiscover_401_issues/ (Reset virtual directory)I receive the expected error 600 response when opening the autodiscover URL directly (internal). If you are attempting to log onto an Office 365 service, ensure you are using your full User Principal Name (UPN)., Please check from the result of Test Email AutoConfiguration, whether Outlook tries to lookup office365. Bryce (IBM) about building a "Giant Brain," which they eventually did (Read more HERE.) First, make sure that NTLM is enabled on the EWS virtual directory. All of these users can log into login.onmicrosoft.com with their UPN/domain credentials. The Microsoft Connectivity Analyzer failed to obtain an Autodiscover XML response. The outlook.office365.com is the EWS endpoint which is basically what the Autodiscover code will always return for Office365 as this is a static endpoint. I found the source of the problem. I can access autodiscover.xml from external connections. Autodiscover doesn't want to work tho. Thanks for your reply. connectivity. autodiscover.companylongname.com.au internet address = X.X.X.X, Powershell command when running Get-ClientAccessServer, [PS] C:\Windows\system32>Get-ClientAccessServer |Select Auto* Mailbox server MINK.kbgs.net Choose a different Office 365 account for the migration. HTTP Response Headers: Connection: keep-alive Have you added the exchange urls to the allowed list in IE. Could not find or sign in with user kbgs.net\extest_f22daf6127864. The answer to this problem is - impersonation. Haven't found that in my research. If this task is being run without credentials, sign We already have the "ExcludeExplicitO365Endpoint" key in place aswell as the "ZeroConfigExchange" key.I'm also reading through the link posted in your topic and see if i can find something. Thanks for the info though. Im configuring Exchange 2016 in my lab environment and having problems with the "Autodiscover" service. https://www.hoelzle.net/nginx-als-reverse-proxy-fuer-exchange-201020132016/, 2. And I noted that This is usually the result of an incorrect username or password. Ivan_Wang I can guarantee you that the username and password is correct. svr hostname = autodiscover.companylongname.com.au Internal autodiscover works fine again, but the external autodiscover shows the following error (MS connectivity analyzer):Attempting to send an Autodiscover POST request to potential Autodiscover URLs.Autodiscover settings weren't obtained when the Autodiscover POST request was sent.An HTTP 401 Unauthorized response was received from the remote Unknown server. Run the autodiscover test from Outlook and post the output. Click, The following window will let you select the desired type of item like, After a successful migration, the tool will provide you a message that migration is complete. 2. M] [FailureCategory=Cmdlet-CasHealthCouldNotLogUserNoDetailedInfoException] 5ADCB21F,Microsoft.Exchange.Monitoring + PSComputerName : SERVERFQDN Here is the brief procedure for Office 365 data migration . ABAAGsAYgBnAHMALgBuAGUAdABNAEkATgBLAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAMfTY9RpTHmzWT2cvIKBIlABAQAAAA FAALwBhAHUAdABvAGQAaQBzAGMAbwB2AGUAcgAuAGsAaQBuAGcAcwBiAGEAcAB0AGkAcwB0AC4AcwBhAC4AZQBkAHUALgBhAH request-id: 0462d6a9-f539-45e4-922a-1b6f92919baf Welcome to the Snap! 1999 - 2022 Citrix Systems, Inc. All Rights Reserved. This is usually the result of an incorrect username or password. If you are attempting to log onto an Office 365 service, ensure you are using your full User Principal Name (UPN). [2016-04-06 02:01:13Z] Autodiscover response: What I did notice is that the autodiscover authentication was both annonymous and windows integrated. Login to the Azure portalusing Microsoft 365 login credentials. The Microsoft Connectivity Analyzer failed to obtain an Autodiscover XML response. I have disabled annonymous and users are able to log into their + FullyQualifiedErrorId : [Server=MINK,RequestId=ddfb0664-638d-4c44-893c-e8dcf5b0c809,TimeStamp=4/7/2016 2:44:01 A In this article, we will go through one significant error which does not even let the migration started. When you look at the security log in the server what's the error your receiving for those bad attempts? I'm completely stumped. Thanks for your reply. An HTTP 401 Unauthorized response was received from the remote Unknown server. In theory, the Autodiscover process should fail. I have the feeling it's probably an easy fix but I can't see it. If you are attempting to log onto an Office 365 service, ensure you are using your full User Principal Name (UPN).HTTP Response Headers:request-id: ebc671e7-1ca1-4b92-8207-6b003f426345X-CasErrorCode: UnauthenticatedRequestCache-Control: privateServer: Microsoft-IIS/10.0WWW-Authenticate: Negotiate,NTLM,Basic realm="autodiscover.domain.de"X-AspNet-Version: 4.0.30319X-Powered-By: ASP.NETX-FEServer: EX01Date: Mon, 17 Jul 2017 14:50:22 GMTContent-Length: 0Set-Cookie: NSC_TMAA=2829d751fe703f17f0c06ff44ebb4033;HttpOnly;Path=/;,NSC_TMAS=247fc3bab2d6b592609a6e80a405f4f3;Secure;HttpOnly;Path=/;,NSC_TMAP=xyz;Path=/;expires=Wednesday, 09-Nov-1999 23:12:40 GMT;,NSC_TMAV=xyz;Path=/;expires=Wednesday, 09-Nov-1999 23:12:40 GMT;Elapsed Time: 1011 ms. Primary Authentication: LDAP (SAM & UPN Policy) --> SSO Attribut "userPrincipalName", 401 Based Servers: ActiveSync, Autodiscover, Session Policy: OWA SSO Profile (HTTP.REQ.URL.CONTAINS("/owa/auth/logon.aspx"), Authentication Virtual Server: AAA_Exchange2016, NetScaler NS11.1: Build 49.16.ncreltime:mili second between two records Mon Jul 17 16:01:00 2017 Index rtime totalcount-val delta rate/sec symbol-name&device-no 0 7148 183336 9 1 route_tot_hits route(127.0.0.0_255.0.0.0) 1 0 638887 79 11 route_tot_hits route(192.168.2.0_255.255.255.0) 2 0 175948 4 0 route_tot_hits route(0.0.0.0_0.0.0.0_192.168.2.253) 3 7161 529 6 0 pol_hits Policy(LDAP_Lab_SAM) 4 0 814 6 0 pol_hits Policy(LDAP_Lab_UPN) 5 0 242 6 0 pcp_hits cspolicy(cs_pol_autodiscovery) 6 0 69 1 0 pcp_hits tmsession(SETTMSESSPARAMS_ADV_POL) 7 0 62 6 0 pcb_hits cs_pol(cs_pol_autodiscovery)(cs_exchange2016) 8 0 69 1 0 pcb_hits policyBinding_26_10000000081_GLOBAL REQ_DEFAULT_65534(SETTMS ESSPARAMS_ADV_POL) 9 0 183357 21 2 route_tot_hits route(127.0.0.0_255.0.0.0) 10 0 638993 106 14 route_tot_hits route(192.168.2.0_255.255.255.0) 11 0 175971 23 3 route_tot_hits route(0.0.0.0_0.0.0.0_192.168.2.253) 12 0 2297 1 0 ssl_ctx_tot_session_hits vserver_ssl_192.168.2.250:443(cs_exchange201 6) 13 7074 183369 12 1 route_tot_hits route(127.0.0.0_255.0.0.0) 14 0 639058 65 9 route_tot_hits route(192.168.2.0_255.255.255.0) 15 0 175976 5 0 route_tot_hits route(0.0.0.0_0.0.0.0_192.168.2.253). I thought about WAP but I don't have the time at the moment to set up ADFS properly and with care, besides that we won't need it for anything else. Do you still need the config? [2016-04-06 02:01:13Z] Autodiscover request: If you are attempting to log onto an Office 365 service, ensure you are using your full User Principal Name (UPN).HTTP Response Headers:Connection: keep-aliverequest-id: b930db52-7615-44cd-9ea3-7d7da35540afContent-Length: 0Server: Microsoft-IIS/10.0WWW-Authenticate: Basic realm="autodiscover.domain.tld"WWW-Authenticate: NegotiateWWW-Authenticate: NTLMX-Powered-By: ASP.NETX-FEServer: SVEXC001Date: Wed, 12 Aug 2020 05:58:10 GMT. 5 Ways to Migrate Emails from One Host to Another. . The steps for installing them are as follows: http://onlinehelp.microsoft.com/office365-enterprises/hh124998.aspx Then, try these steps: Run Connect-MsolService and input Microsoft 365 administrator account. The request failed with HTTP status 401: Unauthorized when sending email from office 365(Exchange) Archived Forums 161-180 > Exchange Server Development. The same behaviour occurs in Microsoft Outlook 2016 and when opening the EWS URL directly, it'll ask for a password constantly but won't connect. ServerFQDN Exchange Web Services Issue : I have two mail IDs. Microsoft.Exchange.Management.SystemConfigurationTasks.ServiceValidatorBase.InternalInvoke() If the Office 365 account which you are using is different from the UPN from the Active Directory, then you will have to face the error. So looking at the logs again the issue is with the In this article I will revisit the Autodiscover and Authentication process of the Skype for business clients. When I remove the 401 Authentication on the autodiscover vServer everything is working flawless. 1.below. I could try and connect it to our SIEM. Users are synced up with password hash synchronization. Date: Wed, 06 Apr 2016 02:01:13 GMT I finally might have the budget for next year to refresh my servers.I'm undecided if I should stick with the traditional HPE 2062 MSA array (Dual Controller) with 15k SAS drives or move to a Nimble HF appliance. - Autodiscover: 401 - Remaing: None This is the result of the Microsoft Remote Connectivity Tool: Quote The config of my AAA server looks like: Name: AAA_Exchange2016 Certificate: Wildcard Primary Authentication: LDAP (SAM & UPN Policy) --> SSO Attribut "userPrincipalName" 401 Based Servers: ActiveSync, Autodiscover Form Based Servers: OWA, ECP So Ive changed the route in our firewall so it bypasses nginx and goes straight to Exchange.The Microsoft Connectivity Analyzer was able to validate the autodiscover settings and successfully tested the MAPI address book, but failed to connect a mailbox by using MAPI. at Also I've noticed that theSet-AutodiscoverVirtualDirectory can't set the Internal and External URL's as these parameters are not available for some reason. > set type=srv AutoDiscoverServiceCN : ServerName Run Get-MsolUser -ReturnDeletedUsers -SearchString useralias | FL to get the user ObjectID. Detailed Information on Sensitivity Labels in Microsoft 365, Methods for Export Office 365 Contacts to VCF. Any help on this urgently would be great. What I did notice is that the autodiscover authentication was both annonymous and windows integrated. extest_f22daf6127864 as this seems not to have accecc. Did you ever figure this out? (MS) We tried also to setHKCU\SOFTWARE\Microsoft\Office\16.0\Common\Identity\EnableADAL (REG_DWORD 0), but it didn't work. For more information : Default settings for Exchange virtual directories4.If only the external connection has this problem. If you are attempting to log onto an Office 365 service, ensure you are using your full User Principal Name (UPN). If you are facing this error, then you may try to use the following solutions to rectify the problem: After making all the appropriate changes in the Office 365 account, the error should be removed, and the migration should also be smooth. How to Import PST Mailboxes to Exchange Server? Additional Details An HTTP 401 Unauthorized response was received from the remote Unknown server. OWA is accessible from external locations and works fine. in as a Domain Administrator, and then run Scripts\new-TestCasConnectivityUser.ps1 to verify that the user exists on I've configured remote access for a customer who only has a Fritzbox as router. Click to know more, https://autodiscover.domain.de:443/Autodiscover/Autodiscover.xml, https://support.citrix.com/article/CTX216539, Upgrade your version of Internet Explorer. Even now from time to time we may have a client that refuses to find the server and we have to implement the one-off autodiscover.xml method to get it to work. Source ServiceEndpoint Scenario Assign the Global Administrator credentials to the Office 365 account. Test Steps, The Microsoft Connectivity Analyzer is attempting to retrieve an XML Autodiscover response from URL https://autodiscover.:443/Autodiscover/Autodiscover.xml for user pcmgmbh@mrw-kranservice.de. In order to keep pace with new hires, the IT manager is currently stuck doing the following: To provide a unified login experience, Citrix will enforce MFA for all Citrix properties starting on November 28, 2022. I'm not getting any ssl issues at all. at System.Net.HttpWebRequest.GetResponse() Result : Failure X-Powered-By: ASP.NET This is usually the result of an incorrect username or password. You will be able to leave a comment after signing in. Default Server: ------------ Authorization: Negotiate TlRMTVNTUAADAAAAGAAYAJoAAABGAUYBsgAAAAAAAABYAAAAOgA6AFgAAAAIAAgAkgAAABAA (233631) Return Title Error using Auto Discover to connect to Office 365: "The remote server returned an error: (401) Unauthorized." Description When attempting to connect to Office 365 using Auto Discover, the following message is displayed on screen: "Could not connect to the Autodiscover service on Exchange. Additional Details An HTTP 401 Unauthorized response was received from the remote Unknown server. All Trademarks Acknowledged. Seems to be a weird issue with the Connectivity Analyzer. When opening the URL from an external connection, the site will ask for a password over and over again, but won't proceed to the XML. We had this problem when we first migrated over to Outlook365. Required fields are marked *. Celebrating 20 years of providing Exchange peer support! After completing the migration procedure, click OK. Maybe that will fix your issues. Could it, in any way, be related to our Microsoft365 tenant? Have you tried testing the autodiscover from external network without the proxy? port = 443 Microsoft.Exchange.WebServices.Data.ServiceRequestException: The request failed. If the response is helpful, please click "Accept Answer" and upvote it.Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread. Hi, I am having similar issues. The remote server returned an error: (401) Unauthorized. F5 would be a bit too big just to publish Exchange, I'm looking into FortIWeb since we already have a FortiGate. Content-Type: text/xml; charset=utf-8 It just screams authentication settings into my face but I don't see what I can and can't change to make this work.Does anyone here maybe have an idea?Cheers!MaxPS, this is the full MS protocol:Attempting to send an Autodiscover POST request to potential Autodiscover URLs.Autodiscover settings weren't obtained when the Autodiscover POST request was sent.The Microsoft Connectivity Analyzer is attempting to retrieve an XML Autodiscover response from URL https://autodiscover.domain.tld:443/Autodiscover/Autodiscover.xml for user user@domain.tld.The Microsoft Connectivity Analyzer failed to obtain an Autodiscover XML response.An HTTP 401 Unauthorized response was received from the remote Unknown server. The service maintains a connection to Amazon WorkMail and updates local settings whenever you change endpoints or settings. AutoDiscover enables you to configure Microsoft Outlook and mobile clients by using only your email address and password. Our site does not support outdated browser (or earlier) versions. you need to disable ADAL on the client (registry) orupgrade to NetScaler >= 12.x, HKCU\SOFTWARE\Microsoft\Office\16.0\Common\Identity\EnableADAL (REG_DWORD 0), For more Information: https://support.citrix.com/article/CTX216539. AutoDiscoverSiteScope : {Company-Site}, When doing a Test-OutlookWebservices this is what we get, [PS] C:\Windows\system32>Test-OutlookWebServices Then the error may occur, because the domain of the Office 365 may not be registered with the Microsoft DNS. Maybe it needed some time after my last changes. It is a flexible tool which supports the Office 365 environment and reduces the network complexities. Content-Length: 0 The Username and password are correct and have been tested! If you haven't already enrolle Upvote if you also have this question or find it interesting. If the Office 365 account which you are using is different from the UPN from the Active Directory, then you will have to face the error. The authentication header received from the server was 'Basic Realm="mail.contoso.com"'.

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