Category: hybrid
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Domain Tenant Move and Device Join Issues
I discovered recently an issue following a tenant to tenant Microsoft 365/Azure AD migration. The issue was that devices would not enroll with Intune in the old tenant because the settings the device was getting was mixed up between the old and new tenants. In the case I had, the new tenant was not yet…
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Exchange Hybrid Wizard – New Tenants and Missing Errors
Rumoured to be fixed end of June 2023 A short blog post on this issue – you see in the Microsoft Exchange Server Hybrid Configuration Wizard logs the following error “Connecting to remote server failed with the following error message: Connecting to remote server outlook.office365.com failed with the following error message : For more information,…
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Managing Hybrid Exchange Online Without Installing an Exchange Server
In April 2022 Microsoft finally released the ability to manage Active Directory synced attributes (Hybrid Identity) to Azure Active Directory for Exchange without a full Exchange Server installation. Instead, you install the Exchange Management Tools (EMT). You need to install Exchange Server 2019 CU12 or later to do this, and you either uninstall your existing…
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Outlook AutoDetect And Broken AutoDiscover
Those in the Exchange Server space for a number of years know all about AutoDiscover and the many ways it can be configured and misconfigured – if even configured at all. Often misconfiguration is to do with certificates or it is not configured at all because it involves certificates and I thought I was aware…
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Anonymous Emails Between On-Premises and Exchange Online
When you set up Exchange Hybrid, it should configure your Exchange organizations (both on-premises and cloud) to support the fact that an email from a person in one of the organizations should appear as internal to a recipient in the other organization. In Outlook that means you will see “Display Name” at the top of…
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Exchange Online Migration Batches–How Long Do They Exist For
When you create a migration batch in Exchange Online, the default setting for a migration is to start the batch immediately and complete manually. So how long can you leave this batch before you need to complete it? As you can see from the below screenshot, the migration batch here was created on Feb 19th,…
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Office 365 Retention Policies and Hybrid Public Folders
If you create an Office 365 Retention Policy (in the Security and Compliance Center) that applies to all Exchange Online content then you might find that after the retention policy has been deployed (a day or so later usually) that the policy is in error and there is a message at the top of the…
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Outbound Email Via Exchange Online Protection When Using Hybrid Exchange Online
In a long term hybrid scenario, where you have Exchange Online and Exchange Server configured and mailboxes on both, internet bound email from your on-premises servers can route in two general ways. The first is outbound via whatever you had in place before you moved to Office 365. You might have configured Exchange Online to…
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Configuring Hybrid Device Join On Active Directory with SSO
The instructions from Microsoft at https://docs.microsoft.com/en-us/azure/active-directory/device-management-hybrid-azuread-joined-devices-setup are missing some of the steps on setting up hybrid device join to Azure AD. This is a complete list of steps when Pass-Thru auth with SSO is enabled on the domain. Enable SSO – this is covered elsewhere. You can also do hybrid device join on a federated…
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Administrators, AADConnect and AdminSDHolder Issues (or why are some accounts having permission-issue)
[Scripts updated 5th October 2017 to support updates for Exchange Hybrid Writeback. If you ran earlier versions of these scripts you will need to run them again] AdminSDHolder is something I come across a lot, but find a lot of admins are unaware of it. In brief it is any user that is a member…
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Unable To Remove Office 365 Domain Error
If you need to remove a domain from Office 365 it needs to not be in use. This includes the services that use that domain, for example an Accepted Domain in Exchange Online. If though you have an expired, maybe test, Office 365 tenant and you want to remove a domain from it you may…
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Configuring Sync and Writeback Permissions in Active Directory for Azure Active Directory Sync
[Last updated 9th November 2022 – note that Microsoft now include this functionality in their own product as written at https://learn.microsoft.com/en-us/azure/active-directory/hybrid/reference-connect-adsyncconfig#set-adsyncexchangehybridpermissions] [Last updated 11th November 2019 – added support for Exchange Server automapping support, which was announced during Microsoft Ignite 2019 and will be supported in the first half of calendar year 2020. This is…
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Speaking at TechEd Europe 2014
I’m please to announce that Microsoft have asked me to speak on “Everything You Need To Know About SMTP Transport for Office 365” at TechEd Europe 2014 in Barcelona. Its going to be a busy few weeks as I go from there to the MVP Summit in Redmond, WA straight from that event. My session…
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Exchange Web Services (EWS) and 501 Error
As is common with a lot that I write in this blog, it is based on noting down the answers to stuff I could not find online. For this issue, I did find something online by Michael Van “Hybrid”, but finding it was the challenge. So rather than detailing the issue and the reason (you…
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Configuring Exchange On-Premises to Use Azure Rights Management
This article is the fifth in a series of posts looking at Microsoft’s new Rights Management product set. In an earlier previous post we looked at turning on the feature in Office 365 and in this post we will look at enabling on-premises Exchange Servers to use this cloud based RMS server. This means your…
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Highly Available Office 365 to On-Premises Mail Routing
This article looks at how to configure mail flow from Office 365 (via Exchange Online Protection – EOP) to your On Premises organization to ensure that it is highly available and work in disaster recovery scenarios with no impact. It is based on exactly the same principle to that which I blogged about in 2012:…
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The New Rights Management Service
This blog is the start of a series of articles I will write over the next few months on how to ensure that your data is encrypted and secured to only the people you want to access it, and only for the level of rights you want to give them. The technology that we will…
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Cannot Send Emails To Office 365 or Exchange Online Protection Using TLS
I have found this is a common issue. You set up an Exchange Online Hybrid or Exchange Online Protection (EOP) stand alone service and follow all the instructions for the creating of the connectors needed, only to find that your emails queue in your Exchange Server. If you turn on protocol logging you get this…
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Hosting Exchange 2010 and Issues With Duplicate Contacts
When you are creating a hosted Exchange system using the Exchange 2010 On Premises product (not the /hosting version of the product) it is likely that if two or more of your customers create a mail contact in the global address list (GAL) for the same external email recipient they will see some issues with…
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Office 365 Hybrid Coexistence and Edge Server
One of the delights in my job is when Microsoft give me a call and ask me how something works in one of their products! Such a call came today and it involved get Office 365 hybrid coexistence working with an Edge Server. Exchange Server Deployment Assistant does not have the answer to this issue;…