Office 365 hybrid autodiscover not working. Read and res...

Office 365 hybrid autodiscover not working. Read and resolve all problems in the Autodiscover setup easily. One part of our business wants to use a separate office 365 account as they are using a different domain name and do not want it on our existing office 365 account. Autodiscover does the right things, and it connects automatically. Aug 19, 2024 · Learn how to set up autodiscover URL in Exchange Hybrid deployment with the explanation and make your configuration rock solid. If you are referring to autodiscover record, in exchange hybrid environment,we need point autodiscover record to On-premise Exchange server. Hy! I have a simple question about the autodiscover record pointing. Unlock the secrets of Autodiscover, the backbone of seamless email configuration! Join us on a journey through the intricacies of Autodiscover, exploring its role in various services, such as Exchange and Office 365. The Teams service uses the Exchange Autodiscover service to locate the EWS URL that's published by the server that's running Exchange Server. xml. I'm not finding much online for this error. The only problem is that autodiscover fails for migrated users. In Outlook Mobile we where seeing a Select your email provider page as shown: Outlook Mobile Select Email Provider (aka AutoDetect is not working) In a hybrid environment, Autodiscover plays a crucial role in ensuring seamless communication and configuration between on-premises Exchange servers and cloud-based services like Microsoft 365. Hybrid Modern Authentication is not supported with the Hybrid Agent. If there are issues with autodiscover redirection (which is handled by the hybrid), your user’s Outlook client will endlessly prompt for basic authentication credentials, which is often not supported in Exchange Online by authentication policies and will be entirely unsupported in October 2022. com is not included in your certificate. In our lab, we This problem is specific to certain Microsoft apps, or Office 365. One by one, let’s examine some helpful strategies Check the functionality of the CNAME DNS record at the Autodiscover URL https://mail. I am trying to setup a M365 account in Outlook on a client’s computer but it keeps failing the autodisover. I am hoping someone may be able to point me in the right direction to resolve my confusion. Learn how to enable Hybrid Modern Authentication in Exchange on-premises. So please check if it is in your certificate via Get-ExchangeCertificate. You will need to leverage the Classic Exchange Hybrid Topology and publish AutoDiscover, EWS, ActiveSync, MAPI, and OAB endpoints for Hybrid Modern Authentication to function with various Outlook clients. Also, Microsoft disallows any users’ mailboxes on Hybrid Exchange servers. office365. Resolutions are provided. Hi all, While working through migrating Hybrid Exchange 2016 to 2019, I’ve come across something that I am a bit confused about. Learn how to configure an Exchange Server on-premises to use Hybrid Modern Authentication (HMA), offering you more secure user authentication and authorization. Every user logs in with the same UPN, but their primary SMTP will According to the error message, it means that Autodiscover. For On-premise mailbox, it remain use previous autodiscover lookup behavior to find endpoint and access to Exchange. The Problem: Pretty straightforward – users on prem could not see the free/busy status of users in Office 365. It works fine on my workstation at my office. When we try to configure the new accounts in Outlook as new profiles Some time over the last month, an issue has arisen with our exchange 2016 server Autodiscovery. I have a Hybrid Exchange, all mailboxes migrated to cloud. Provides a resolution. If ErrorCode 600 is returned, adding t I have seen issues where the autodiscover process hits the TLD first and a Web hosting company thought it would be a good idea to respond to these attempts with a page showing "Oops that page doesn't exist" and thus the autoD gets an incorrect response, but a response nonetheless. In addition this is not a normal Hybrid as here multiple Exchange Organizations from different AD … I understand Autodiscover is not working on Outlook 2019 and Outlook 2021. I have tried it using a hotspot to eliminate a issue with the connection but it still fails. Autodiscover-V2 will fail if your account is missing in EXO or not migrated yet and Outlook will then start the regular Autodiscover-V1 process. Our comprehensive guide to Autodiscover simplifies this technical topic and provides step-by-step instructions for setting up Autodiscover in Exchange On-Premise, Office 365, and Hybrid environments. Although it’s fair to ask why Microsoft did not put the necessary wheels into motion before now, it’s probably because of the declining size of the non-hybrid Exchange installed base. Exchange 2019 on latest CU, all roles on single server. . After a Tenant to Tenant Migration Autodiscover is not working. Test your connectivity to Microsoft services with this tool, designed for troubleshooting and diagnostics. Having trouble getting our autodiscover working, looks like it may have broken after the last major CU, but could have been earlier. com To replace an expiring cert I had to run the Hybrid Connection Wizard (HCW). I… To run an Exchange Online deployment, you need to understand Outlook Autodiscover in a hybrid scenario and know where to look for troubleshooting information. Having just stopped the IIS website temporarily, I see that on-prem Outlook and off-prem ActiveSync (from iPhone) is still working and configuring the mailboxes successfully. Everything is working as far as I can tell, users are synced and can authenticate just fine to Office 365 and OWA via AD FS once migrated. The autodiscover A-record (autodiscover. com cname to what MS recommends, and it has propagated and resolves properly. Jun 25, 2025 · Describes an issue that blocks Outlook from setting up a new profile by using Exchange Autodiscover for an Exchange Online mailbox in Microsoft 365. mydomain. To verify that the Autodiscover process is working correctly, run the Outlook Connectivity test in the Microsoft Remote Connectivity Analyzer tool. This problem is specific to certain Microsoft apps, or Office 365. When you use Outlook 365, or Windows Mail, etc. I modified the autodiscover record to point to… For On-premise mailbox, it remain use previous autodiscover lookup behavior to find endpoint and access to Exchange. We will configure Autodiscover service in Exchange 2019, we will set up Outlook Anywhere in Exchange 2019, and we will configure Exchange server 2019 for external access so that users can connect to Exchange services from external network. Hybrid O365 - Autodiscover or logon not working after migration from on prem for specific user on specific machine User's email works on a fresh, clean machine. The Office 365 Hybrid configuration run without any issues. Hello, I am hoping someone might know how to help us with this issue. For migrated mailbox, autodiscover service will redirect On-premise autodiscover record to Office 365 (autodiscover-s. An administrator has several options for diagnosis and troubleshooting the auto-discover problem. The client is being configured on the internal LAN. If you do not have any mailboxes in on-premises, you can change the autodiscover to Office 365, you only need to change it back if you need to migrate mailboxes on-premises or use the autodiscover to use in Outlook and Mobile. Learn step by step how to configure Internal and External URL in Exchange Server with PowerShell and why it's essential to do that. Provides a solution. I’ve changed the autodiscover. I have done a repair of is office, run Microsoft debugger that say Auto Discovery is not working, but the Microsoft online Connectivity tolls say everything good and the same account on another computer work fine. In an example with a client of mine, this was failing and so though we have Hybrid Modern Auth working for Outlook, we did not have it working for Outlook Mobile. Client is Outlook 2007 two issues: when I go to create a new mail (outlook) profile on a computer that is currently connected to my domain, it immediately pops up with the configuration pointing to my local exchange If you’re running a hybrid setup, you can adjust the configuration on your Exchange Server to ensure Autodiscover doesn’t redirect to Office 365. When Autodiscover defaults to Microsoft instead of Fasthosts, it usually means Outlook is receiving higher‑priority Autodiscover responses, often from cached data, domain DNS changes or the presence of an Office 365 Autodiscover endpoint on the system. Autodiscover is publish via DNS Registrar and updated, but outlook is not connecting. That’s not the case when it points to Office365. The cert got replaced but after this my free/busy lookups from on-prem to O365 did not work, and on-prem users could not setup the Outlook Mobile App with AutoDiscover. I have… So it’s not the account the problem, and everyone else it’s working correctly but is Outlook 2016 just doesn’t want to work. Configure OAuth between Exchange Online and Exchange on-premises. I cannot for the life of me get autodiscover working. camb. Migrated from a Tenant with Azure Ad Connect synced to the new tenant using BitTitan. We did some tests like the mail flow, by validating the outbound connector, performed a successful migration of a test mailbox etc. The reason I never confirmed this is because I changed the autodiscover record to point to Office 365 so I avoided the issue but in a subsequent migration for another client, I changed the users' local Active Directory UPN to match their default SMTP address and it worked flawlessly. Jun 25, 2025 · Describes an issue in which users can't create new Outlook profiles, view free busy, or connect to a shared mailbox or a public folder in Microsoft 365. Autodiscover currently points internally and externally at the Exchange server, directing on-premise clients to the on-premise server and redirecting migrated clients to office365. We are in the middle of planning a Hybrid Exchange migration. ourdomain. The updates necessary for the Exchange Online (Office 365) is not installed on MS Outlook you are using. In this blog we learn how to configure Client Access Services in Exchange 2019. Hello, background: moving on-prem exchange 2007 to office365. com, but when performing the autodiscover test in Outlook, it connects to https://outlook. That’s probably not going to work with a hybrid Exhange setup since Autodiscover points to your on-prem hybrid server and it expects to find an AD mail user there. As part of Hybrid config, Exchange knows how to redirect to Office365, if autodiscover points to on-prem. Attempting to configure an outlook 2016 client I could not connect to the exchange 2016 server. Error: … I'm having an issue after we did Google Workspace migration to Office 365. Describes an issue in which a mailbox can't map automatically in Office 365 hybrid environment. I spent last weeks quite some time with Outlook performance issues in an Exchange Hybrid scenario. Some essential attributes like proxyAddress, displayName, mailNickname, and the Mail are not set up in the on-premises Active Directory. I hope this information helps someone. Note that the Autodiscover-V2 process can also be skipped with the following reg key. Provides troubleshooting steps for errors that a user might encounter when they try to access free/busy information. Jan 27, 2023 · Here, in this post, we will look at all possible causes behind Autodiscover not working to set up Office 365 profile issues and find some quick solutions for the same. If the above suggestion helps, please click on "Accept Answer" and Get answers to Autodiscover not working issues via expert-curated tips. com/autodiscover/autodiscover. outlook. company. Access the URL in Outlook Web Apps. Did a rebuild of the virtual folder, certificates are all valid,… Many have criticized Microsoft for not moving to enable modern authentication for on-premises servers sooner. In the future the mailboxes in being only in the cloud. and add account, it instantly recognizes the user account as a valid Office 365 user and then tries to get mail settings for that user from Office 365 instead of from autodiscover. In your Exchange Management Shell, run the following command: PowerShell Code: Last week I started the setup of an Exchange 2010 Hybrid configuration at a customer, to start a pilot with Office 365/ Exchange Online. We have a single domain forest, but multiple SMTP domains for mailflow. Our autodiscover address in Exchange is autodiscover. contoso. When hybrid was setup, autodiscover was left in place with both external and internal DNS pointing to the on-prem server, which is still the case today. Quickly diagnose configuration problems across multiple protocols. I have a ticket open with Microsoft about this but figured I would post here as well. All DNS records are setup properly, however everytime I try to use autodiscover to setup Outlook Mobile App or Desktop App,… Our comprehensive guide to Autodiscover simplifies this technical topic and provides step-by-step instructions for setting up Autodiscover in Exchange On-Premise, Office 365, and Hybrid environments. You mentioned that you are on a hybrid Exchange set up, may I know what on-premises server do you have? We have an AD domain syncing to Office 365 for our main domain name and email works fine and autodiscover from inside and outside our network work perfectly. com) points to our on-prem exchange, which works fine externally. I worked my way through every setting I could think of, including (but not limited to) Autodiscover, DNS, permissions, certificate settings, Exchange CU level, to no avail! To run an Exchange Online deployment, you need to understand Outlook Autodiscover in a hybrid scenario and know where to look for troubleshooting information. Just like the question discussed here: Autodiscover not working for a specific domain in a multi-tenant Exchange 2019 Some additional information: Unexpected Autodiscover behavior when you have registry settings under the \Autodiscover key Validate connection issues for Exchange, Teams, Outlook, and Microsoft 365 services. From what I'm gathering (correct me if I'm wrong), you just rerun the hybrid wizard and when you get to the autodiscover step, you just tick off the accepted domains to enable autodiscover for these additional domains. While supporting another amazing Insentron this week, I was called in to help troubleshoot hybrid connectivity issues prior to an Exchange 2010 hybrid migration to Office 365. From the domains’ list, you have to choose your public domain or domains, remembering that Autodiscover has to be configured correctly for them. Here, the Office 365 Hybrid Configuration Wizard lists your domains along with information if the Autodiscover service is available. com), and access to Office 365. nfmtp, jlkyl, hz5xi, ktsz, zfcn, kdtuj, rzud, d5on, bbiod, aoau,