Step 2: Check for Local Data preference. When you create a new Outlook profile, an Internet Message Access Protocol (IMAP) profile is used. Navigate to the following registry key: HKEY_CURRENT_USERSoftwareMicrosoftOffice15.0OutlookAutoDiscover. Start Registry Editor. Value Name: Software\Microsoft\Office\x.0\Outlook\AutoDiscover\Boot. In step 2, Outlook checked whether the administrator had deployed a policy to specifically check for the Autodiscover payload as a preference. This again is an uncommon case and typically not the cause of generic Autodiscover issues. If the Exchange server is properly . This behaviour breaks the experience for both existing profiles, and newly created profiles fortunately we have discovered a workaround involving a registry fix, for which the steps will be detailed below. Default: 0 Creating it doesn't help. Figure 2. For this step, if Outlook decides you are in this special boot scenario and the attempt to retrieve the Autodiscover XML data fails, the whole Autodiscover attempt fails. It automatically discovers which Exchange server holds a user's mailbox and configures the Outlook client to connect to that server. Locate and then select the following registry subkey: HKEY_CURRENT_USER\Software\Microsoft\Office\x.0\Outlook\AutoDiscover See more result See also : Outlook Autodiscover Registry Key , Outlook Autodiscover Registry Remember that you're sending the user's credentials, so it's important to make sure that you're only sharing them with a server you can trust. Also, if you are unsure if the registry data is needed, consider changing the data for any of these registry values to zero (0), and then test Outlook to see if you experience a difference in . Outlook 2016 Autodiscover Registry Edit to Disable Office 365 Autodiscover. Enable the option Exclude the root domain query based on your primary SMTP . Additionally, the redirection data may contain a new, different email address to use as the target address for the Autodiscover attempt. Add a new DWORD entry. Open regedit: to do so, click the Start button and then in the Start Menu, either in the Run box or in the Search box, type regedit and press Enter. Maximum: 120 Seconds, Information: Specified time-outs are used as WinHttpSetTimeoutssettings. Enter a password for the account, and then enter the password again in the Confirm password box. Long story short our autodiscover isn't setup correctly for how SFB looks for it, meaning it is not setup for our primary smtp, external.com, but our internal smtp, internal.lan. For Exchange Web Services (EWS) clients, Autodiscover . The policy control value for this step is as follows: ExcludeScpLookup. CPUU fails with the following error: 'Failed to back up the ExcludeSCPLookup value of registry key 'Software\Quest\CPUU\HiddenBackup' in case Microsoft Office was installed by Administrative user and Office AutoDiscover registry keys are not set by Outlook for current user. Checking Office 365 works well if you have an . This potentially allows an HTTPrequest that cannot be reached to time out faster, which will improve overall performance. To add additional HTTPS servers to which AutoDiscover can be redirected without displaying a warning, repeat steps 4 and 5 for each server. When Outlook tries to contact the Autodiscover service on the Exchange server with the Client Access Server (CAS) role, it can use several different methods to reach the service, depending on the client-server topology. Use User Principal Name (UPN) to expedite the Autodiscover process. Note:As of build16.0.9327.1000, the EnableOffice365ConfigService policy is no longer used. 1. Information: This value controls how Outlook handles certificate errors and warnings that are received when it performs http tasks. After installation, create a new or edit an existing GPO and go the the following User Configuration setting: Administrative Templates>Microsoft Outlook 2013>Account Settings>Exchange>Disable AutoDiscover. Trying each endpoint candidate in order. To resolve this problem, review the Autodiscover-related registry data you may have on your Outlook client, and ensure the data is configured correctly. As soon as the web service provider or web hosting provider resolves the issue, the Outlook registry key must be removed. When Microsoft Outlook tries to retrieve Autodiscover information from a server that's running Microsoft Exchange Server, you may experience unexpected results if you're using one or more of the available registry values that can be used to control Autodiscover. You can't connect to a shared mailbox or a public folder. In Outlook got to File==>Options==>Advanced and select Enable Troubleshooting Logging and restart Outlook. Now, I suggest we remove and recreate Autodiscover VD to fix this issue. The policy control value for this step is as follows: ExcludeHttpRedirect. For case 3, Outlook starts the whole autodiscover process from the beginning. In order to get the UPN, Outlook must first look the user up in the directory. Data: 1 = Allow Outlook to handle authentication challenges from proxy servers; 0= silently fail authentication challenges from proxy servers, Information: This registry value allows the relaxation of a security configuration and is covered in detail inthe following article inthe Microsoft Knowledge Base:3115474MS16-099: Description of the security update for Outlook 2010: August 9, 2016. Locate and then select the following registry subkey: HKEY_CURRENT_USER\Software\Microsoft\Office\x.0\Outlook\AutoDiscover. Furthermore, you can find the "Troubleshooting Login Issues" section which can answer your unresolved problems and equip you with a lot of relevant information. Reading the results provided by the tool should reveal clues regarding why connectivity failed. This way, the domain-joined clients will not be able to ask Active Directory an SCP entry and directly query the AutoDiscover (which . The format of that endpoint is "http://autodiscover." For this step, Outlook builds a URL from the domain name of the initial address in the format of https:///autodiscover/autodiscover.xml and tries to retrieve the payload from the resulting URL. Can you enable logging in Outlook and post the OLKDISC.log here. Under Microsoft Office Outlook Connectivity Tests, select Outlook Autodiscover, and then select Next. When Autodiscover retrieves an XML payload successfully through any step, the payload may be cached locally as the "last known good" configuration. This query might return multiple records, but you should only use records that point to an SSL endpoint and that have the highest priority and weight. This behaviour breaks the experience for both existing profiles, and newly created profiles - fortunately we have discovered a workaround involving a registry fix, for which the steps will be detailed below. + domain + "/autodiscover/autodiscover.xml". This workaround is provided as immediate relief for the issue. If this step does not retrieve a payload, Outlook moves to step 6. In case you run into slow account setup with Outlook 2016, which can take up to 10 mins or more. This registry value and the header that it adds are rarely used in any modern authentication stack and very unlikely to affect the tAodiscover process in either a negative or positive way.Certificate Error Handling, Key: HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Outlook\AutoDiscover Then create a new GPO, or edit an existing GPO, and go to the following setting: User Configuration -> Policies -> Administrative Templates -> Microsoft Outlook 2016 -> Account Settings -> Exchange -> Disable AutoDiscover. Create an Outlook registry key to exclude the HTTPS root domain. For Outlook 2016: Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. For more information about how to back up and restore the registry, go to the following article in the Microsoft Knowledge Base: 322756 How to back up and restore the registry in Windows. 3. The policy control value for this step is as follows: ExcludeHttpsAutoDiscoverDomain. Autodiscover process Every time that Outlook needs Autodiscover information, it uses a set of ordered steps to try to retrieve an XML payload that contains configuration settings. There's no specific policy control for this step. The settings could also allow an HTTP request that takes longer than the default of 25 seconds to succeed by increasing the time-out setting to something larger than 25 seconds.Mapi/Http Protocol Control, Key: HKEY_CURRENT_USER\Software\Microsoft\Exchange In the bus company in Seongnam, where two drivers were confirmed, the bus service was resumed after the rest of the employees received a negative decision. For more information about the Autodiscover service, see Overview of the Autodiscover Service. This is a general setting that controls whether Outlook can try to connect to Exchange by using the Mapi/Http protocol stack. Luckily, Autodiscover defines a limited number of places for you to look. The policy control value for the new feature to use the Office 365 Config Service isEnableOffice365ConfigService. Outlook will also perform certificate checks to prevent redirection to potentially harmful URLs in this step. Microsoft Community website. However, serious problems might occur if you modify the registry incorrectly. Out-of-the-box personalization settings capture the following key, meaning it will be restored at application start:-. On the File tab in Outlook, click Office Account or Account. You can't create an Exchange ActiveSync profile. Does not allow you to request specific settings. The Autodiscover service provides access to Microsoft Exchange features such as: Autoconfiguration of profile, the Offline Address Book (OAB), Free/Busy Information, Out-of-Office assistant, Sharing Invitations, Auto-mapping of Shared Mailboxes . To resolve this problem, review the Autodiscover-related registry data you may have on your Outlook client, and ensure the data is configured correctly. If Outlook determines confidently that you are an O365 user, an attemptis made to retrieve the Autodiscover payload from the known O365 endpoints (typically https://autodiscover-s.outlook.com/autodiscover/autodiscover.xml or https://autodiscover-s.partner.outlook.cn/autodiscover/autodiscover.xml). If Outlook still is going to the autodiscover URLs, then launch Process Monitor to track registry acess and see if these reg keys are read. On the File menu, click Exit to exit Registry Editor. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. 2. If this step does not retrieve a payload, Outlook moves to Step 5. First run the below command to remove Autodiscover VD: Remove-AutodiscoverVirtualDirectory -Identity "cas-servername\Autodiscover (Default Web Site)" Then recreate it: This value enables Exchange administrators to specify whether users will be authenticated by using the configured account email or the user principal name (UPN) during AutoDiscover scenarios. If this process is successful, another try is made one hour later. 1. This response tells Outlook to redirect to a new, different URL to try to retrieve the payload. For more information about how to do this, see Unexpected Autodiscover behavior when you have registry settings under the \Autodiscover key. Limited to the user settings that are available in the. Value: AllowNegoCapabilityHeader Navigate to HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Outlook\AutoDiscover. In response to certain connectivity failures. Create a local XML redirect file in step two. On the night of the 14th, the central registry office of Seoul Central District Court was confirmed, and the central office is closed today. The method you use depends on your requirements and environment; however, we recommend using the SOAP web service, if possible. I also acknowledge that I am responsible for the management and security of this account checkbox. For more information about the Office 365 client channel releases, see the following Microsoft websites: Version and build numbers of update channel releases for Office 365 clients, Office 365 client update channel releases. The data specified is passed to all four parameters of the WinHttpSetTimeouts API. If the administrator has deployed this registry value and seeded an autodiscover.xml file, Outlook reads the Autodiscover payload from this file. Similarly, if an attempt was triggered because of an error by using the current configuration information, then Outlook purposefully wants to autodiscover again and not use the LKG information because presumably the last known good information resulted in a failure. Outlook prompts the user to log in, but logging in will fail as its effectively requesting credentials to authenticate against the O365 service, rather than Hosted Exchange credentials. This is because it quotes the wrong key. Click to clear the Use Guessmart and the Secure Guessmart Authentication check boxes. Moral of the story, Office 365 is a great product and goes a long way to help non-IT to self . Autodiscover works for client applications that are inside or outside firewalls and will work in resource forest and multiple forest scenarios. For Exchange Web Services (EWS) clients, Autodiscover is typically used to find the EWS endpoint URL, but Autodiscover can also provide information to configure clients that use other protocols. To add more HTTPS servers to which AutoDiscover can connect without displaying a warning, repeat steps 4 and 5 for each server. Close Outlook, then open up a program called Registry Editor by pressing the windows icon and typing in simply regedit. 3. The email address doesn't have to be a valid email address, because no authentication occurs against the Microsoft 365 server. In complex environments, this may causea large number of DCs to becontacted before a result is found. However, if you configure the Autodiscover registry/policy values incorrectly, you may prevent Outlook from obtaining Autodiscover information. This causes problems for customers who arent using O365 for their mail service (our Hosted Exchange customers), especially if the user has an unused mailbox within the O365 service, or if the the user has a personal O365 subscription using their business email address. Look for a key with your domain name in it, right click on it, and delete it. swissns GmbH The policy control value for this step is as follows: ExcludeLastKnownGoodURL. Before you can use Autodiscover, you have to locate the right Autodiscover server for your user. Client applications should not authenticate or send data to a non-SSL endpoint. The article describes the issues that are related to the absence, improper configuration or resolution of CNAME record used for autodiscover service. If this step does not retrieve a payload, Outlook moves to step 9. However, I am having trouble with Windows Mail. Typically, IMAP doesn't appear in the test results unless Autodiscover requests are responded to by a third-party web server. 3. The service determines which (if any) special ITAR needs are in effect for the specified user, and returns the appropriate URLs for that user by using the domain information of the UPN. Anyway I've found a way to work around this by temporarily changing the primary SMTP in Exchange, letting Skype load and it finds Autodiscover and contacts EWS, thus . Office 365 Autodiscover Registry Fix will sometimes glitch and take you a long time to try different solutions. Value: EnableOffice365ConfigService Why Data Backup is Important for Your Business. + domain. LoginAsk is here to help you access Office 365 Autodiscover Registry Fix quickly and handle each specific case you encounter. If it fails too, Outlook will try to use the SRV record lookup method. Here, the process would be: Outlook queries autodiscover.mydomain.com and gets the IP address of autodiscover.outlook.com. In order to disable SCP lookup from windows registry, open Registry Editor and navigate to the following registry path. Redirect handling Step 9 in the Autodiscover Process section is an explicit step to handle nonsecure redirect data. HostAdvice Research: What is Dedicated Hosting and Should You Host Your Blog on a Dedicated Server? For example, when doing a new account creation, Outlook internally skips the step 3 (check for Last Known Good (LKG) data), because it cannot yet have a last known good entry. PreferProvidedEmailInAutoDiscoverAuthPrompts. From the Type down-drop, we need to select SRV. This workaround is provided as immediate relief for the issue. 2212902 Unexpected Autodiscover behavior when you have registry settings under the \Autodiscover key. Go to the Outlook application in the application menu, right-click it, and select the option 'Test Email AutoConfiguration.'. This lead us to run, Fiddler, which confirmed that the Outlook 2016 client was getting stuck on the CAS server, even though the client was sending autodiscover requests to Office 365. For this step, Outlook sends a request to the Autodiscover domain URL (http://autodiscover./autodiscover/autodiscover.xml) and test for redirect responses. This section, method, or task contains steps that tell you how to modify the registry. Exit Outlook. If this step does not retrieve a payload, Outlook moves to step 10. While configuring any account like Office 365 in the Outlook application, a prompt occurs, known as Autodiscover prompt in which there is a permission asking to allow website for configuration with the server settings and an Autodiscover URL settings is used for it which is different for different host provider. Close the Registry Editor. i.e. However, this is expected behavior because not every test that the Remote Connectivity Analyzer performs will succeed. There are three specific certificate errors that the user can decide to ignore and have Outlook retry the http request: WINHTTP_CALLBACK_STATUS_FLAG_CERT_DATE_INVALID There's a problem with the date in the certificate properties, WINHTTP_CALLBACK_STATUS_FLAG_CERT_CN_INVALID There's a problem with the common name in the certificate properties, WINHTTP_CALLBACK_STATUS_FLAG_INVALID_CA There's a problem with the certificate authority in the certificate properties The fix should now be applied, next time you open Outlook it should take this into account and not query Office365 for theautodiscover process, and simply set up the hosted exchange mailbox instead. I hope i've explained correctly the problem, and that you will be able to help me ! Fill in the required fields and click on "Perform Test". Ignore the failures in these figures because this information is intended only to show you the different lookup attempts that are made by Outlook. Enter the verification code that you see on the page. The actual password isn't required because no authentication against Microsoft 365 servers occurs if you're experiencing this issue. The resolution requires you to modify the registry. When they are deployed through GPO, or manual configuration of the policies key, the settings take precedence over the non-policy key. More information on these three certificate error states can be found at WINHTTP_STATUS_CALLBACK callback function, Key: HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Outlook\HTTP\ I am debugging a custom Autodiscover implementation that works fine with MS Outlook and also passes the MS Remote Connectivity Analyzer. (MSOAuthDisabled) 4/ What can we do to prevent that to happen again ? First, if the mailbox is a consumer account (for example outlook.com), the well-known endpoint is attempted. Note: if AutoDiscover key could not be located under the mentioned location, you may add it manually. The ExchangeService.AutodiscoverUrl method in the EWS Managed API implements all three phases of this process for you, so if you are using the EWS Managed API, you don't need to worry about implementing Autodiscover yourself. In phase one, you generate a list of potential Autodiscover servers, and in phase two, you try each server in your list until you (hopefully) get a successful response. Default: 0 Microsoft Office 365 provides features that can support customers with ITARobligations. That the SSL certificate presented by the server is valid and from a trusted authority. In the lower-right corner of the page, select Perform Test. Outlook uses a set of heuristics to determine whether the provided user account comes from Office 365. An HTTP status code of 200, but with a payload XML that tells Outlook to use a different smtp address as the target address. Navigate to HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Outlook\AutoDiscover ; Add a new DWORD entry. Figure 1. Method 1: XML redirection on a local level. Outlook tries to retrieve the Autodiscover payload from the URLs provided by the service. Whenever you are working with authentication, make sure that your code meets the security requirements of your organization. Now CPUU does not require AutoDiscover registry keys. The very first Autodiscover step is to check the registry for some special boot information that tells Outlook that you are in the middle of one of these restart scenarios and to read the Autodiscover payload from the special local file. Furthermore, you can find the "Troubleshooting Login Issues" section which can answer your unresolved . The contents of the header depend on the authentication capabilities of the client computer. Excluding the HTTPS root domain is not a long-term solution for this issue, and we do not recommend it. For more information about the different Autodiscover connection methods used by Outlook, see the following Exchange Autodiscover Service documents: In some scenarios, you may want to use Autodiscover-related registry/policy values to control the method(s) used by Outlook to reach Autodiscover. For more information about SCP, see the following MSDN article:Publishing with Service Connection Points. You can use the following steps in Outlook to determine the method by which Outlook is trying to retrieve Autodiscover information from Exchange: The following figure shows the Log tab when the ExcludeScpLookup and ExcludeHttpsAutoDiscoverDomain values have been set to 1. Autodiscover as a featureis also used by Outlook to discover and configure Exchange ActiveSync (EAS) accounts. Step 4: Open Outlook and configure your account. Outlook Autodiscover Registry Settings will sometimes glitch and take you a long time to try different solutions. (taken from Microsoft Support Article) I haven't found a pre-existing policy to use to create a GPO, but you could create your own to set those registry values instead. At a minimum, you should verify: That the endpoint is an HTTPS endpoint. The following figure shows how to generate an Autodiscover endpoint list.

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