[German]Microsoft has re-released the pulled security updates for Microsoft Exchange Server 2016 and 2019 on November 27. With the first release, it turned out that the transport rules no longer worked after the update installation. Microsoft now believes it has fixed the problems and is making the November 2024 security updates available again.
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The first version of the November 2024 updates
Microsoft released security updates (SU) for Exchange Server 2016 and 2019 on November 12, 2024. These updates are intended to close vulnerabilities found by Microsoft or security partners in Exchange Server. In addition, some new features such as improvements to Exchange Server AMSI integration or warnings against spoofing emails will be introduced. I had reported in the blog post Microsoft Exchange Server Updates November 12, 2024.
Transport rules no longer work
There was this German comment in my German blog on November 14, 2024, which reported that the transport rules for marking emails no longer work after the installation of the security update KB5044062 from November 2024. The application of such rules for flagging emails is explained here using an example.
In the comments section of the German blog post Microsoft Exchange Server Updates 12. November 2024, many administrators confirm that the transport rules no longer work after installing the update. On reddit.com there is this thread complaining about the same problems with transport rules not working. Furthermore, this comment on the Techcommunity post Released: November 2024 Exchange Server Security Updates also points to the problem with broken transport rules.
The Nov. 2024 updates were temporarily suspended
In the afternoon (CET) of November 14, 2024, Microsoft announced in the tech community post Released: November 2024 Exchange Server Security Updates that the rollout of the November 2024 security updates had been stopped.
The download of the SU packages has been temporarily removed from the Microsoft servers and the rollout has also been stopped via Windows Update. In the meantime, a "Know issues" entry has been added to the Techcommunity post.
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Re-release of the Nov. 2024 security updates
I just came across the following tweet on X that Microsoft has released the revised version of the November 2024 security updates for Exchange Server 2016/2019.
The Techcommunity article Re-release of November 2024 Exchange Server Security Update packages states that the problem with the transport rules has been fixed. The Techcommunity article also provides information on how to proceed if the November 2024 SUs have already been installed or are still missing. Frank Carius writes that the security update will be rolled out in December 2024 via Windows Update.
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