Microsoft Exchange and Active Directory Blog
If users complain that emails cannot be forwarded automatically, Exchange Online can be configured accordingly. Exchange Online prevents the automatic forwarding of emails via Outlook rule, users who have created a corresponding rule receive the following undeliverable message from Exchange Online: The automatic forwarding of emails poses a security and data protection risk, therefore ... Read more
Microsoft has announced that customers with Microsoft 365 Enterprise licenses will also be migrated to the new Outlook from 2026. In contrast to "classic Outlook", the "new Outlook version" is a web app. A corresponding announcement was published today on Heise Newsletter. However, the message can also be misunderstood somewhat, ... Read more
Under certain circumstances, Microsoft Office 365 and Exchange Server allow access to attachments and images in emails without the need for authentication. In most cases it should be difficult to exploit this problem, but reader L. Herzog writes to me that this problem could be exploited in his environment. L. Herzog has ... Read more
The "Microsoft Exchange Community (MEC)" conference was held from September 13 - 14, 2022. On these two days there were many sessions on Exchange on-Prem and Exchange Online. If you were unable to attend the free online conference, you can find the recordings of the sessions on Youtube: Microsoft Exchange Community (MEC) Technical Airlift - Sept 2022 Michel de Rooij also ... Read more
The last Exchange 2019 Hybrid articles were about migrating Exchange on-prem mailboxes to Microsoft 365. This last article is about ending the hybrid mode and uninstalling the last on-prem Exchange server. Once all mailboxes have been migrated to Microsoft 365 and the synchronization of the local Active Directory accounts ... Read more
The Exchange 2019 hybrid environment has already been set up in Part 4. I actually wanted to go into the migration batches in more detail in this article, but decided against it. The migration batches and their options are usually only relevant in larger environments. In smaller environments, the migration batches can be conveniently set up via the Exchange Online Admin Center ... Read more
The fourth part of this article series deals with the necessary adjustments to the DNS and the first tests. In part 3, the Exchange Hybrid configuration was completed to such an extent that only a small amount of configuration is now required. Essentially, once the SPF entry has been adjusted, the tests can begin. Adjust DNS settings (SPF) So that ... Read more
In the previous article, the Microsoft 365 Tenant and Azure Active Directory Connect were set up. This article now deals with the installation and configuration of the Hybrid Configuration Wizard (HCW). The HCW creates the Exchange Hybrid environment and enables you to migrate mailboxes from the Exchange on-prem installation to Microsoft 365. The HCW takes over all ... Read more
The second part of the article series "Setting up a hybrid environment" deals with the preparations for Exchange hybrid mode. The Microsoft 365 tenant must be set up accordingly and Azure AD Connect must be installed and configured. The necessary steps are described in this article. The setup of the Microsoft 365 Tenant is described in the ... Read more
I've often been asked if I could write an article on setting up a hybrid environment with Exchange 2019 and Microsoft 365. The last articles on this topic are a bit older, but they still work well apart from a few minor details. Nevertheless, it's time to publish an updated version again. In ... Read more
