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Recent Comments
- Anonymous on filefactory.com down? (July 22, 2024)
- RGI on Windows 11 24H2: Update KB5063878 causes installation error 0x80240069
- Anonymous on Microsoft Phishing with MS 365 tenants?
- guenni on Microsoft blocked account of LibreOffice developer
- Sarah Osgrove on Microsoft blocked account of LibreOffice developer
Tag Archives: Exchange
Over 28,000 unpatched hybrid Exchange instances (CVE-2025-53786) still online
[German]Microsoft Exchange Server hybrid configurations are vulnerable to the elevation of privilege vulnerability CVE-2025-53786. Over 28,000 instances are still unpatched. The US CISA has given authorities until Monday, August 11, 2025, to patch the vulnerability. Here is an overview Advertising
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Microsoft Exchange Server Hybrid at risk by CVE-2025-53786
[German]Another note for administrators of Microsoft Exchange Server hybrid configurations. Microsoft points out that these configurations are at risk from an Elevation of Privilege vulnerability (CVE-2025-53786). However, there is a hotfix to eliminate this vulnerability in these hybrid configurations and … Continue reading
Exchange Server 2016/2019 Hotfix Updates (May 2025)
[German]A short addendum for administrators of Microsoft Exchange Server 2016 and 2019: Microsoft has already published so-called hotfix updates for the Exchange Server versions mentioned on May 29, 2025. The hotfixes from May 2025 do not contain any new Exchange … Continue reading
Exchange: Optimization of PowerShell processing through multi-threading techniques
[German]How can we optimize bulk operations with PowerShell scripts in Microsoft Exchange? With PowerShell v7, Microsoft has offered the possibility of using multi-threading techniques. The Exchange team has dealt with the options in question in a blog post and describes … Continue reading
Microsoft Exchange: When is CU 15 coming? And other news
[German]Microsoft Exchange 2019 administrators have been asking themselves when CU 15, which has been overdue since 2024, will finally be released. Microsoft has now commented on this in a tech community article and also announced further innovations. Exchange 2019 and … Continue reading
Why ISL Online: Critical factors when choosing a remote desktop solution
[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 ...
Exchange Emergency Mitigation Service for patched systems only
[German]Since September 2021, Microsoft has provided the Exchange Emergency Mitigation Service (EEMS) for Exchange Server to improve Exchange protection. However, this service only works on systems that are up to date. Microsoft explicitly pointed this out at the end of … Continue reading
Does Microsoft Exchange Online change the e-mail sender?
[German]I'm posting an observation from a German blog reader that relates to Microsoft's Exchange Online. The reader is confronted with the problem of complaints from business partners about emails that have not "arrived". There is a suspicion that Exchange Online … Continue reading
Exchange 2016/2019: Nov. 2024 SU not in the Microsoft Update Catalog
[German]Microsoft released security updates for Exchange Server 2016 and Exchange Server 2019 in November 2024. These should actually also be available via the Microsoft Update Catalog, but this is not the case. A blog reader asked me if I knew … Continue reading
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Exchange Server 2019: CU15 delayed until January 2025
[German]A few days ago, I read about the fear that Microsoft would release the Cumulative Update (CU) 15 for Exchange Server 2019 shortly before the holidays in order to be able to hold 2024 for the release. Microsoft has now … Continue reading
Exchange 2016/2019: Nov. 2024 SU v2 also with bug
[German]Microsoft is not really having a good run with its security updates for Exchange Server 2016 and Exchange Server 2019. The version of the security updates released on November 12, 2024 had to be withdrawn due to a bug. Version … Continue reading