Microsoft Exchange and Active Directory Blog
Once again, the year is drawing to a close. To be honest, I don't look back on 2020 with a single tear, and the reason for that is probably well known. Next year will definitely be better! For now, however, I'll be celebrating Christmas with my family, as far as this is safe and possible. I therefore wish all friends, readers and ... Read more
The latest CUs for Exchange Server for 2020 were released by Microsoft today. They fix the problem that no attachments can be downloaded from other mailboxes via OWA and that Outlook only displayed a maximum of 175 results in cached mode. This limit has now been raised to 1000 results. The previous security updates are ... Read more
The company Ookla, with the well-known site speedtest.net for testing internet speed, also offers tools for the command line. The tool itself can deliver the output in JSON format and is therefore very suitable for passing the data on to various other applications. This allows you to create a nice overview of the Internet connection speed. I have a ... Read more
Microsoft has released security updates for a number of vulnerabilities in Exchange Server today, and there is also an update for Exchange 2010. The following vulnerabilities are closed for Exchange 2016 and Exchange 2019: CVE-2020-17117 | Microsoft Exchange Remote Code Execution Vulnerability CVE-2020-17132 | Microsoft Exchange Remote Code Execution Vulnerability CVE-2020-17141 | Microsoft Exchange Remote Code ... Read more
Today my Office programs would no longer start. Apparently a previous update went wrong. When starting Outlook and all other Office programs, the message "Office is being updated. Please wait a moment": After a short wait, the following error message appears, none of the Office programs start: The system event log shows the ... Read more
After renewing the Exchange backend certificate, frequent channel error messages may appear in the event log if the POP3 service of the Exchange server is used. The following two error messages may appear after the certificate has been changed: Source: Schannel Event ID: 36871 Level: Error Fatal error while creating the client credentials for TLS. The internal error status ... Read more
Microsoft today released new security updates for all Exchange Server versions that are still supported. The updates address a total of 3 vulnerabilities: CVE-2020-17083 | Microsoft Exchange Server Remote Code Execution Vulnerability CVE-2020-17084 | Microsoft Exchange Server Remote Code Execution Vulnerability CVE-2020-17085 | Microsoft Exchange Server Denial of Service Vulnerability As two of the vulnerabilities allow remote code execution, it is recommended to ... Read more
Here is another error that can lead to despair, as there are some suggestions for a solution on the net, but they didn't help me. I had to install Exchange 2016 CU 17 for a customer and, as many people know, .NET Framework 4.8 is required for this. However, as the customer still ... Read more
In a somewhat older article, I already mentioned InfluxDB, Grafana and Telegraf. Grafana makes it easy to create attractive dashboards for all kinds of systems. The three tools mentioned are often used for the dashboards, InfluxDB as a database for storing the metrics, Grafana and displaying the dashboards and Telegraf to ... Read more
I have just uploaded version 3.8 (code name Leslie). This is the first version that has a "code name" because Leslie (the Leslie) was kind enough to dig through the many lines of PowerShell code and found and reported some bugs. The following bug fixes are included in version 3.8: updatereport.ps1: The module showed the ... Read more
