Microsoft Exchange and Active Directory Blog
It can happen that the Exchange Health Checker displays the following error in the report: Actually, this is not really an error. A message as a warning would probably have sufficed. The error merely indicates that the size of the event log is too small (the application log is mentioned in the screenshot above). A ... Read more
The security updates for Exchange Server 2016 and 2019, which were released on 12.11.2024, cause problems with the transport rules. In the Exchange Team Blog and in various forums, users are reporting that the transport rules of the Exchange Server no longer work or only work shortly after restarting the Exchange Transport Services. When transport rules are used ... Read more
Microsoft has released new security updates for Exchange Server 2016 and 2019. Click here to download directly: The security update also includes new features: Improvements to the integration of AMSI in Exchange Server As of the release of the November 2024 security update, the ability of products that use Exchange Server AMSI integration has been enhanced to perform additional tasks ... Read more
Managing email addresses in an Exchange Server environment is an essential task for administrators. Email address policies play a central role in this, as they facilitate the automatic assignment of email addresses for users, contacts and groups. In this post, we will explore the creation and management of such policies using PowerShell. What are email address policies? Email ... Read more
It's been a while since I published an article here about Exchange Server and Let's Encrypt certificates. In the meantime, things have changed a bit and I'm getting a lot of requests on the topic, so I'm writing a new article. As you know, Let's Encrypt is a public certification authority, ... Read more
Managing email size limits in Exchange Server is an essential part of administration to optimize server performance and control bandwidth and storage usage. In this post, we will explain the various aspects of email size limits in Exchange Server and provide practical examples of how administrators can manage them effectively. ... Read more
It can happen that Exchange 2019 servers log the EventID 1006 (source: MSExchange Mailbox Replication). The text of the warning is as follows: The warning occurs approximately every 2 minutes. The warning occurs when a database has been deleted and is fortunately very easy to resolve. These are not problems with ... Read more
The CERT-Bund warns on X of more than 15,000 Exchange servers in Germany that are openly accessible from the Internet with at least one vulnerability. Some of the vulnerabilities are already being actively exploited. In March 2024, the BSI had already warned of 17,000 Exchange servers that are openly accessible from the Internet and contain known vulnerabilities. The ... Read more
When configuring mailbox permissions for a group, the following error may occur: The user "testgruppe" was found in Active Directory but isn't valid to use for permissions. Try an SMTP addressinstead. Permissions for groups can only be assigned if it is a security group. For a security group, the values for ... Read more
I have just uploaded a new Exchange Reporter version to GitHub. This is the first Exchange Reporter version which is available on Github. Since I don't have much time to develop the Exchange Reporter anymore, it would be nice if people would participate in the development. Github should now make this much easier than ... Read more
