Microsoft Exchange and Active Directory Blog
I had already reported on the 1TB limit for Exchange Server 2019 Standard Server in a previous article. Exchange Server Standard Edition no longer mounts a database above a size of 1 TB. Unfortunately, this is often only noticed when it is too late. For example, if a database reaches the 1TB limit during the normal ... Read more
Here in the forum and on the Exchange Team Blog there are indications that the installation of the November update for Exchange Server 2016 / 2019 may cause problems. It seems that once again there are problems with servers with German or non-English operating systems when the January update for the Windows Server is installed. ... Read more
In the Exchange security update of November 2024 there is a bug that causes problems with certain calendar functions and I Exchange Health Checker generates the following error: Microsoft writes the following: Issues occur when Exchange servers process calendar-related information and files such as .ical or .ics attachments You cannot preview the files or view them for ... Read more
It can happen that the Exchange Health Checker displays the following error in the report: This error is displayed for virtualized Exchange Servers where the "Dynamic Memory" feature is enabled for the VM. Dynamic Memory is not supported for Exchange Server, therefore the Exchange Health Checker shows this error. This error can occur with Exchange Servers ... Read more
The security updates that caused problems with transport rules were released again today. The new updates have the suffix "v2" and are intended to fix the problems. Microsoft writes the following: If the original version of the update is already installed, the V2 update must now be installed to resolve the issues. Even if the original update ... Read more
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
Die Verwaltung von E-Mail-Größenbeschränkungen in Exchange Server ist ein wesentlicher Bestandteil der Administration, um die Leistung des Servers zu optimieren und die Nutzung von Bandbreite und Speicherplatz zu kontrollieren. In diesem Beitrag werden wir die verschiedenen Aspekte der Größenbeschränkung von E-Mails in Exchange Server erläutern und praktische Beispiele geben, wie Administratoren diese effektiv verwalten können. … 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
The end of support for Exchange Server 2019 and 2016 is approaching. Support for both versions will end on October 14, 2025, from which date only Exchange Server SE (Subscription Edition) will be supported. However, upgrading to Exchange SE is much easier this time than before, at least if Exchange Server 2019 is already in use. Here is a ... Read more
