Robert 365

It’s mid-March and the monthly Security Updates and bug-fixes have been released! A recap of the month so far.

This month, there were no security fixes for Classic Outlook for Windows but there were 7 for other Office application.

Aside from fixes across multiple release Channels, some new issues surfaced as well, and some older issues are still awaiting fixes.

The most notable new issue is that you are not able to create new Microsoft 365 Groups in Classic Outlook. The fix for Outlook replacing extended characters with question marks is now rolling out to all affected Channels.

This guide provides a quick overview of all the latest fixes, new features, persistent bugs, security vulnerabilities and other changes across all Classic Outlook for Windows versions.

Cumulative Update 15 for Exchange 2019 is now available. It is officially called; The 2025 H1 Cumulative Update (CU) for Exchange Server 2019.

This is the last CU update for Exchange Server 2019 and is code equivalent to the RTM release of Exchange Server SE, which will be released early in the third quarter of 2025.

Exchange 2019 CU15 includes the following major changes;

• Support for Windows Server 2025
  You can install Exchange 2019 CU15 on a new server running Windows Server 2025, and then perform an in-place upgrade to Exchange Server SE.
  CU14 has been retroactively validated for this scenario as well.
• Partial TLS 1.3 support for Exchange Server 2019
  When using Windows Server 2022 or later, TLS 1.3 is now enabled by default for all protocols except SMTP.
• Certificate management tasks restored to EAC
  At long last, renewing, importing, exporting and other certificate tasks can be performed via the Exchange Admin Center again, and not just via PowerShell.
• Feature Flighting in Exchange Server
  ​​​​​​​The inclusion of Feature Flighting is in preparation for Exchange Server SE, and doesn’t have an actual function for Exchange 2019.
• OIT module in Exchange Server is replaced by DocParser
  Instead of Oracle’s Outside In Technology, Exchange will now use Microsoft DocParser. This is used for text extraction when processing email attachments for Data Loss Prevention and Exchange Transport Rules.

There are 12 additional fixes documented for this release. A few notable ones are;

• KB5047359: Clean up old Exchange OWA files automatically to free up disk space
• KB5047361: Inline images and text attachments are not visible in OWA
• KB5047402: Online Archiving bypasses the InternetWebProxy setting in Exchange 2019
• KB5048017: RecoverServer operation fails in Exchange Server 2019
• KB5048020: Calendar print doesn’t work in OWA from Exchange 2019 CU14 onwards
• KB5047994: German umlauts in the Subject are replaced by a question mark

This release does not include new updates to the Active Directory Schema for Exchange 2019.

Exchange 2019: CU15 KB5042461 – Download
View: Blog post of the Exchange Team about CU15 for Exchange Server 2019

…get a reboot?

You may have noticed that new content has been quite sparce this year on HowTo-Outlook.com and MSOutlook.info. That is because I’ve been working hard, combining the 2 sites into Robert365.com which I’ve launched today!

20 years ago, Robert Sparnaaij started HowTo-Outlook.com to fill a documentation gap regarding Microsoft Outlook by publishing Long-Form Content articles, technical deep-dives and macros.

This effort, together with being active in various Microsoft Communities, resulted in being awarded by Microsoft with the MVP Award in 2004. I’ve proudly received this award each year ever since.

MSOutlook.info was launched 3 years later to provide scenario-based content in a Q&A style format.

In those 20 years, I, the technical and the publishing landscape changed quite a bit. After long consideration, there were 2 main reasons to combine and rebrand the websites into Robert365.com;

• Maintaining 2 content rich websites with similar topics has become increasingly more difficult.
• Having “Outlook” in the website names felt like a constraint as my interests span a larger spectrum of the Microsoft 365 ecosystem.

With the new platform and structure of Robert365.com, I aim to deliver more Microsoft 365 content regarding communication and collaboration, while keeping Outlook and Exchange as the main focus.

Stay tuned, and subscribe via RSS or X, as there is a lot more to come!

Note:
All the existing content hasn’t gone anywhere and is now available on Robert365.com and will get updated too! All the old links still work and will continue to work as well. 👍