Microsoft Exchange Server 2016 users, it’s time to get excited about Cumulative Update 23 (KB5011155). Released on April 20, 2022, this update offers a range of new features and fixes that can improve your experience with the software. One of the most important aspects of this update is that it resolves many of the issues found in Exchange Server 2016 since its release, making it highly recommended for all users.
From enhancing the reliability of email delivery to strengthening security, CU23 helps to address numerous vulnerabilities and improve performance. As a bonus, you can download the update package and the UM language packs from the Microsoft Volume Licensing Center, ensuring you have the latest and greatest tools at your disposal.
Keeping your system up-to-date is crucial, especially with updates that support various operating systems and offer significant improvements. This update is essential for anyone looking to maintain a smooth and secure Microsoft Exchange Server environment. Dive into the technical documentation library to access detailed information and guidelines on utilizing the new update effectively.
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Microsoft Exchange Server 2016 Cumulative Update 23 Overview
Microsoft Exchange Server 2016 Cumulative Update 23 (KB5011155) was released on April 20, 2022. This update is a comprehensive collection of fixes.
Notable Features
KB5011155 includes:
- Fixes for nonsecurity issues.
- All previously released security fixes.
Deployment
We can get the update from several sources:
- Microsoft Update: Automatically download and install the update.
- Microsoft Update Catalog: Provides a direct downloading option.
- Microsoft Download Center: Manual download for distribution.
Files and Resources
The update ensures many of the Microsoft Exchange Server files are upgraded.
Important files include:
- bigfunnel.bondtypes.dll
- bigfunnel.common.dll
- bigfunnel.configuration.dll
System Requirements
| Component | Minimum Requirements | Notes |
| OS Version | Windows Server 2012 R2 or later | Mandatory |
| RAM | 8 GB | Minimum required |
| Disk Space | 30 GB | Minimum required |
Download Button
Downloading the update is easy. Click the button from the Microsoft Update Catalog or Microsoft Download Center.
App Background
Exchange Server 2016 CU23 continues to improve our system by addressing prior issues and keeping it up to date.
Security and Compliance
The complianceauditservice.exe file ensures the security attributes of Microsoft Exchange Server 2016. It’s vital for tracking and auditing use.
Updating to CU23 is essential for the latest security patches and better functionality.
This update is crucial for compliance and security.
Benefits of Microsoft Exchange Server 2016 Cumulative Update 23
Cumulative Update 23 brings significant improvements. It enhances security, increases performance, and addresses various bugs, ensuring a smoother user experience.
Improved Security Features
This update bolsters protection against new threats. Security updates included in this version address several vulnerabilities that could have been exploited by attackers.
| Security Update | Details |
| CVE Patches | Addresses critical vulnerabilities |
| Enhanced Authentication | Better protection of credentials |
Our servers are now more resilient against common attacks, protecting our data and infrastructure.
Enhanced Performance
Performance boosts are another essential feature of CU23. We see noticeable improvements in how efficiently our servers handle tasks.
Key areas of performance enhancements include:
- Faster processing speeds improving the overall user experience.
- Reduced downtime ensuring our email services remain available.
- Optimized resource management to make sure our servers run smoothly without hiccups.
These upgrades mean we can rely on our email services to operate at peak performance, day in and day out.
Bug Fixes and Stability Improvements
CU23 addresses various bugs, enhancing the stability of Exchange Server 2016. This update solves both security and nonsecurity issues identified in previous versions.
- Resolved issues that caused server crashes.
- Fixed problems related to email delivery failures.
- Improved overall server stability.
With these fixes, users experience fewer disruptions, and our IT team spends less time troubleshooting issues. The server’s uptime and dependability have greatly improved, giving us peace of mind.
How to Install Microsoft Exchange Server 2016 Cumulative Update 23
This guide walks us through the steps needed to successfully install Cumulative Update 23 for Exchange Server 2016. We’ll cover the necessary prerequisites, detailed installation steps, and crucial post-installation checks.
Pre-installation Requirements
First things first, we need to ensure our system meets the requirements. Make sure that our server runs Windows Server 2016 and has the latest updates installed.
A comprehensive backup of the Exchange Server environment is essential. It’s wise to have both a full backup and a stripe set of crucial databases.
Lastly, ensure we are operating with administrative privileges. This saves us time and trouble during the installation process.
Step-by-Step Installation Guide
1. Download the Update
First, download the exchangeserver2016-x64-cu23.iso file from the Microsoft website.
2. Verify the File
Check the SHA256 hash of the downloaded file to ensure its integrity.
3. Mount the ISO
Right-click the file and select “Mount” to access its contents.
4. Run Setup
Execute the setup.exe file and follow the onscreen instructions.
5. Accept License Terms
Complete the installation by accepting the terms and letting the process finish.
Post-installation Checks
After installation, it’s crucial to run these checks:
1. Verify Services
Ensure all Exchange services are running.
2. Test Functionality
Send and receive test emails to confirm everything is functioning correctly.
3. Check Event Logs
Review the event logs for any errors or warnings that might need addressing.
Common Issues and Troubleshooting
Cumulative Update 23 for Microsoft Exchange Server 2016 introduced various fixes, but users have faced installation errors and performance problems. Addressing these issues helps ensure a smoother operation.
Installation Errors
Installation errors are quite common with CU23. We often encounter problems when trying to update the software. Run installation with elevated Command Prompt before starting to avoid permission issues. Simply right-click on Command Prompt and select “Run as administrator.”
Another frequent issue involves stuck installations. These are typically resolved by restarting the installation process. For failed updates, you might need to reinstall the security update. Make sure to use an elevated Command Prompt to troubleshoot.
If OWA or ECP stops working, navigate to your Exchange Server scripts. Depending on your version, these scripts are located in the V15 or V14 folder. Running the necessary scripts can often resolve these problems.
Performance Problems
Performance problems can also arise post-update. We frequently notice Outlook connectivity issues or slowness. One solution is to restart the server.
For performance metrics, use scripts like CollectOverMetrics.ps1 and CollectReplicationMetrics.ps1. These offer a deeper look into server health and identify bottlenecks.
Memory leaks are another potential issue. Watch out for activeMonitoringEventMsg.dll and Cafe_AirFilter.dll. These components sometimes cause high CPU usage. Monitoring these files helps us catch these issues early.
To check database redundancy, run checkDatabaseRedundancy.ps1. This important practice ensures your databases are functioning smoothly, minimizing downtime.