Outlook Bypasses Autodiscover And Connects Directly To Office 365 Mailbox. com tenant was setup as user@mydomain. Dec 11, 2025 · Create

com tenant was setup as user@mydomain. Dec 11, 2025 · Create a migration service account in Microsoft 365, this account does not require any admin role assigned. ” Did you mean the devs verify your domain: domain. php/knowledgebase/8/Outlook-bypasses-AutoDiscover-and-connects-directly-to-Office-365-mailbox. 0. Jan 17, 2019 · But we've run into one caveat. Press win+r, then type regedit on the outlook client. - However after a few hours, when Outlook starts, we get this message : Your mailbox has been temporarily moved on Microsoft Exchange server. However, it must have full access to the user mailboxes or have the required API Permissions. Alternatively put, I need to cause Office 365-aware applications to not log into Office 365 immediately upon adding user@domain. com purely for office365 license management When I joined the company our office. In the default setting, Outlook always tries to retrieve Autodiscover settings from Microsoft 365, which often leads to problems with on-prem Exchange servers. com in Office 365 and create new account and mailbox for some users? If not, how did they do it? This is related to DNS records, because Jun 3, 2019 · What this feature does is connect Outlook directly to Office 365 if Autodiscover is not working. If Autodiscover is not working on the source server or there is a network hiccup between a computer and the source email server then Direct Connect may cause Outlook to connect to Microsoft 365 even with a valid Autodiscover record pointing to the source. Nov 15, 2018 · This problem is specific to certain Microsoft apps, or Office 365. Prevent it by adding registry key entry or using group policy. Jan 10, 2024 · This article describes possible causes for issues with Outlook 2016/2019 when connecting to an Exchange mailbox and ways to solve them. I have an Office 365 tenant with a bunch of accounts licensed to Office 365 b… Please refer to Configuring Journaling for Office 365 for additional steps. onmicrosoft. Our goal is to find effective ways to solve business challenges Issue: Now, users are still able to access their hosted Exchange mailboxes in Outlook, but the hosted Exchange shared mailboxes all prompt for a password and are inaccessible. For more information about disconnected mailboxes, see Disconnected mailboxes. If you are using another archiving service, you will need to create an additional outbound connector to ensure journal emailed is not sent to Proofpoint. Disables Outlook Direct Connect feature. Outlook 2016 onward can disconnect from Ms Exchange Self hosted. How to easily configure automapping of shared mailboxes in Outlook. com address. When it kicks in, Outlook may bypass your on-premise exchnage server and attach itself to an Office 365 mailbox. This is only a problem with Office 365 aware mail applications. You could follow the steps to create ExcludeExplicitO365Endpoint registry value to bypass connection to O365. Oct 9, 2025 · APPLIES TO: 2016 2019 Subscription Edition In Exchange Server, you can use the Exchange admin center (EAC) or the Exchange Management Shell to disable or delete mailboxes. Disabled or deleted mailboxes are also known as disconnected mailboxes. Damit Direct Connect wirksam wird, muss der Benutzer über eine aktive Mailbox in Office 365 mit einer gültigen Lizenz verfügen. Staff here use Office 365 business and some Skype Feb 8, 2024 · Due to changes implemented by Microsoft to the Autodiscover service, Outlook and Windows are now configured to connect to Microsoft Office 365 instead of your o Issue: Now, users are still able to access their hosted Exchange mailboxes in Outlook, but the hosted Exchange shared mailboxes all prompt for a password and are inaccessible. 1. com. A valid Autodiscovery record is required. To try to fix the issue and force the connection to Office 365 instead of the internal server, you can try adding this registry key: Path: HKEY_CURRENT_USER\Software\Microsoft\Office\14. Use thi… We begin to login at the Portal Home. This causes problems for customers who aren’t using O365 for their mail service (our Hosted Exchange customers), especially if the user has an unused mailbox within the O365 Dec 7, 2018 · Anstelle des richtigen Postfachs verbindet sich Outlook mit einem Postfach xxxxxx@outlook. It is no longer possible to manually enter Exchange Server details. Jun 30, 2015 · The on-prem Exchange2010 environment is behind the F5 and was setup via iApp (working great!) - when migrating a mailbox O365 connects to on-prem via the CAS MRSProxy in EWS: the issue with this is that this particular connection cannot (per MS documentation) be SSL offloaded and must make a connection directly to one of the CAS servers. gothamweb. Nov 6, 2025 · All new outlook 365 or Outlook Live accounts will automatically try to connect to Office 365 first. This is useful when you have an on-premises Exchange server and want to prevent Outlook from automatically discovering Office 365 settings.

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