Microsoft Exchange and Active Directory Blog
Nobert has informed me that Microsoft has updated the prerequisites for the installation of Exchange Server 2019 and 2016. The Windows feature Message Queuing (MSMQ) is no longer required and can be uninstalled from the Exchange servers. The two Windows features "Message Queuing (MSMQ) Activation" and "Message Queuing" are removed with the automatic installation of the ... Read more
Microsoft has released new security updates for Exchange Server 2016 and 2019. The update fixes two remote code execution vulnerabilities with a severity rating of "Important". Click here to download the updates: The vulnerabilities are not yet being actively exploited. However, the available updates should be installed as soon as possible. Click here for the article on the ... Read more
The following error often occurs after migrating an Exchange server. Outlook cannot download the offline address book with cache mode switched on and displays the following error message: "Error (0x8004010F) while executing the task: Error during operation. An object cannot be found." The error can occur if the address book was migrated to an offline ... Read more
OpenAI AI is currently on everyone's lips and every day there are new articles in the media about GPT3 or GPT-4 with tests of how well or badly something works. There are calls for the regulation of AI systems and some people are already predicting mass unemployment. Whether all this ... Read more
CU13 for Exchange Server 2019 was released yesterday. The CU13 contains all previous security updates and brings new features for Exchange Server 2019. The CU13 can be downloaded here: CU13 finally brings Modern Authentication (OAuth 2.0) for on-prem Exchange Server. Until now, Modern Authentication was only available in conjunction with the hybrid configuration, i.e. ... Read more
During an Exchange 2016 to Exchange 2019 migration, no mailboxes could be moved to the new Exchange 2019 databases. The MoveRequests got stuck at 0% and showed the error StalledDueToSource_DiskLatency: No matter how big or small the mailbox was: No mailbox could be moved. Directly after creating the MoveRequest, the error StalledDueToSource_DiskLatency was displayed. Also ... Read more
Problems can occur on an Exchange 2019 server if a database is larger than 1 TB. On an Exchange 2019 Standard Server, the maximum database size is 1 TB, if the database is larger, there are problems with failover within the DAG. Also, databases that are larger than 1 TB can no longer be ... Read more
Support for Exchange Server 2013 will end on April 11, 2023, after 10 years. This means that Exchange 2013 will no longer receive any security updates, making the continued operation of Exchange 2013 highly risky. If there are still Exchange 2013 servers in the company, they should be provided with the latest security updates and upgraded to newer Exchange versions as quickly as possible. Read more
Some Active Directory features cannot be defined for organizational units but only for AD groups. One example of this is Fine Grained Password Policies. If you still want to apply such features to all users of an organizational unit, simply create a group with all users who are stored in the OU. This group is also called a shadow group. ... Read more
In order to continue to guarantee the security of Exchange Online, Microsoft is gradually starting to block old Exchange Server versions. The new system, which is now being introduced gradually, is called the "Transport-based Enforcement System" and has three functions: Reporting, throttling and blocking. In the first stage, administrators are informed that old Exchange Server versions are present in the company. Read more
