[German]Microsoft has been struggling with disruptions to its Microsoft 365 services and Exchange Online since February 2025, but is keeping quiet about the cause. I have received information that a bug or vulnerability in Microsoft Exchange Online has led to a catastrophic failure. I was told, a tenant administrator probably unintentionally triggered the deletion of mailboxes worldwide.
[German]I have again received a reader's report that Microsoft is probably currently switching installations of Outlook Classic to the new Outlook app again. Users of Microsoft Outlook 2000 have now been affected, as I have heard.
[German]Brief information for Exchange Online users and administrators. Microsoft will introduce new limits for Dynamic Distribution Groups (DDGs) from April 2025. This limits the number of Dynamic Distribution Groups (DDGs) that can be used per organization to 3,000.
[German]There is no end to the disruption of the Microsoft cloud service outlook.com. Since March 1, 2025, the cloud services (Exchange Online, outlook.com, outlook.de etc.) have been experiencing repeated outages. The status is also disrupted on March 13 and 14, 2025.
[German]Microsoft has been struggling with cloud outages in Exchange Online and Microsoft 365, including the iOS Outlook app, since March 1st, 2025. At the same time, I have just come across information about the CVE-2024-49035 vulnerability on the Microsoft Partner Portal. There are now indications that the Exchange Online issues could be related to a vulnerability. And there are suspicions that customers may have been compromised. I'll summarize some of the information that I see as pieces of the puzzle in a certain (unfortunately still incomplete) picture.
[Sponsored Post]In the rapidly evolving IT world, choosing the right remote desktop software is critical for organizations that value security, ease of use and reliability. One provider of secure remote access that has been on the market since 2001 is ISL Online, which presents some considerations for choosing such software below. More ...
[German]Brief information for users who use the Remote Desktop app for Windows (e.g. because the RDP connections do not work). It has just been announced that Microsoft will discontinue the Remote Desktop app for Windows on May 27, 2025. It will be replaced by the "Windows app", which will come from the Store.
[German]Next case of "HP rolls out a firmware update for printers and breaks them". The manufacturer HP has released a firmware update for printers which is intended to correct a number of errors. Shortly after the release, numerous users reported that their devices were broken and only displayed error 11. I am posting the facts here in the blog.
[German]On March 11, 2025 (second Tuesday of the month, Microsoft Patchday), Microsoft released several security-related updates for Microsoft Office 2016, as well as the C2R variants (Office 2016-2021 and 365) and other products. No updates were released as of March 4, 2025. Below you will find an overview of the available updates.
[German]Microsoft has disclosed a new problem that affects both Windows 10 and Windows 11 and is caused for the first time by the January 2025 preview update. Some USB printers may then "possibly" print random text. The problem has already been fixed by rolling back a fix via the built-in KIR feature.
[German]On March 11, 2025 (second Tuesday of the month, Patchday at Microsoft) various cumulative updates were released for the supported versions of Windows Server. Below I have extracted the provided updates along with some details for these Windows Server versions (from Windows Server 2012 to 2025). The updates fix the vulnerabilities described in blog post Microsoft Security Update Summary (March 11, 2025), that are relevant for Windows Server.
MVP:
2013 – 2016
WIMVP:
2017 – 2020
