This wizard automagically creates a self-signed certificate for the new federation trust with the Federation Gateway. We had a semi-failed/delayed exchange migration project about a year and a half ago and set ourselves up with a hybrid O365 configuration. Federation Trust. In the Exchange 2010 Hybrid Configuration Wizard, this option is called: Route all Internet-bound messages through your on-premises Exchange servers This is not the default option, but is necessary for some organizations due to compliance or message tracking reasons. Information on the execution of those tasks can be viewed in the wizards log. Install and Run Hybrid Configuration wizard with Full Hybrid Configuration. Create Office365 tenant. Note Download Microsoft Office 365 Hybrid Configuration Wizard with Internet Explorer. An on-prem organization that's configuring a hybrid deployment needs to have a federation trust with the Azure AD authentication system. Note This command tests the federation trust Federation trust is a mandatory step in the on-premises Exchange organizations when configuring Full hybrid deployments, as this allows us to create organization relationships (for features like hybrid free/busy or OWA/EAS redirection) and sharing policies (1:1 hybrid calendar sharing). Select Configure my Client Access and Mailbox servers for secure mail transport. The Office 365 Hybrid Configuration Wizard will also ask you to identify the Transport Certificate between on-premises Exchange and Office 365. Lets first look at the hybrid configuration object itself. Under the section titled Federation Trust click the Remove button. We can use the New Federation Trust wizard in the Exchange Management Console (EMC) on the hybrid server to create the federation trust with the Microsoft Federation Gateway for the on-premises organization. What the Exchange hybrid configuration wizard does. If the wizard detects the presence of Exchange 2010, the federation trust will be created. We have been assisting a customer with their move from on-premises Exchange Server 2013 (CU23) to Exchange Online. Once the file is created, you can either manually complete the Federation Trust setup through the Exchange Admin Center or run the Hybrid Wizard again. HCW will call Get-ExchangeServer and if no Exchange 2010 servers are reported, the workflow to enable Federation Trust and subsequently require domain proof will not execute. Please make note of the TXT record in the windows.Then add it to DNS zone (it should resolve via public dns). When you reach the radio button for Configure my Client Access and Mailbox server window, you can select the enable centralized mail transport checkbox if you want to. HCW will call Get-ExchangeServer and if no Exchange 2010 servers are reported, the workflow to enable Federation Trust and subsequently require domain proof will not execute. The next step is setting up the Federation Trust. The Manage Hybrid Configuration Wizard fails with the following error: ERROR:System.Management.Automation.RemoteException: Active Directory operation failed on AM3PR06A001DC06.EURPR06A001.prod.outlook.com. Remove Federation Trust using ADSIEdit: Start ADSIEdit, connect to Configuration Partition, expand CN=Configuration,DC=your,DC=domain, expand CN=Services, expand CN=Microsoft Exchange, expand CN=yourexchangeorg, double-click CN=Federation Trusts; In right-hand pane select CN=Microsoft Federation Gateway, right-click on it and select Delete As mentioned earlier, a federation trust is created by HCW only in Full Hybrid. On the Welcome page, verify that Add a federation server to an existing Federation Service is selected, then click Next. The Azure Active Directory authentication, or Azure AD, acts as this trust broker. In the Exchange 2010 Hybrid Configuration Wizard, this option is called: Route all Internet-bound messages through your on-premises Exchange servers This is not the default option, but is necessary for some organizations due to compliance or message tracking reasons. Instead, it will only enable Federation Trust if there are Exchange 2010 servers on premises. Information on the execution of those tasks can be viewed in the wizards log. This update includes the Single On-Premises Multi-Tenant feature and other fixes in Exchange Hybrid. If present, the existing federation trust is used to support the hybrid deployment. When the HCW wizard appears click Next to start the wizard. Install and assign Exchange services to a valid digital certificate purchased from a trusted public certificate authority (CA). In the console tree, click Organization Configuration for the on-premises Exchange forest. Now this requirement is covered by running the Hybrid Configuration Wizard in stage 8: configuring mailflow. In a typical automatic configuration via the HCW, the on-premises Federation Information and Organization Relationship for on-premises with Office 365 and vice versa will look like the images below: Each time the wizard is invoked, a timestamped trace log file is created. Should you ever need to re-run the HCW, then the guidance below Setting subsequent Exchange organisations into Federation can be achieved by the normal Hybrid Configuration Wizard (HCW), but some specialised configuration is required this is discussed below. Hybrid Configuration Wizard, after taking input from the administrator, performs a series of activities divided into several workflows. The Exchange hybrid configuration wizard is just a PowerShell script that runs all the necessary configuration tasks. Removing Federation Trust from Hybrid Configuration Wizard Exchange 2010 Hello, I'm trying to remove the Federation trust but it won't let me shows the following error Same thing. It is nevertheless useful to understand what exactly is happening behind the scenes. The certificate is used to ensure This trust and relationship are automatically configured at both ends (Office 365 and on-premises) when running the Hybrid Configuration Wizard (HCW). We mostly just ran through the Hybrid Configuration Wizard to set things up, but we run AADConnect as well. The process that was a painfully long configuration was greatly simplified with the release of the HCW with SP2 for Exchange 2010 back in May 2011. The trace log can be imported into Sentinel or other 3 rd party security information and event management (SIEM) tools for analysis. The federation trust will be recreated. Not surprising really - Exchange uses the system account which would ignore IE settings. HCW logs are located at %appdata%\Microsoft\Exchange Hybrid Configuration on the machine from where HCW was ran. The Problem The most common scenario where Ive seen this [] Spread the loveDuring a migration with a client we ran the Hybrid Configuration Wizard, as is a usual process for a migration, we ran into an issue. After running the Hybrid Configuration Wizard, federation testing unveiled a pre-existing condition with Autodiscover which resulted in the hybrid wizard not creating the Federation Trust or Organization Relationships properly. The log is in the following location: In this localization, there should be three files. Federation Trust. Open Exchange Console Management (On PREM)-> "Organization Configuration" -> Select "Federation Trust" You should find an existing 'Microsoft Federation Gateway' Trust created by the wizard. Go into EMC > Organisation Configuration > Federation Trust > Properties, you should be at the Manage Federation wizard. The New Hybrid Configuration wizard helps simplify the creation of a hybrid deployment between your on-premises and Microsoft Office 365 Exchange organizations. For your question, I think you don't need to remove this Federation before running the Hybrid Configuration Wizard. ****UPDATE 3/23/2020**** Changes have been made to the HCW and the installation since this original post. Todays article explores a part of the O365 Hybrid Configuration called Exchange Federation Trust. OAuth authentication is reliant on the Auth certificate in your on-premises Exchange. Exchange Hybrid Configuration Wizard (HCW) version 17.0.5494.0 was released on September 21, 2020. If one doesnt exist, a Federation Trust certificate is created and the feature enabled on-premises. The log is in the following location: In this localization, there should be three files. The next step is setting up the Federation Trust. Remove the federation trust from the on-premise Exchange environment as follows; Remove-FederationTrust -Identity Microsoft Federation Gateway By default the hybrid configuration wizard in Exchange 2010/2013 names the federation trust Microsoft Federation Gateway.
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