[KB7010] Upgrade ESET Mail Security for Microsoft Exchange Server to the latest version

Issue

• Before upgrading to ESET Mail Security for Microsoft Exchange Server version 10.x and later
• Choose an upgrade method
• Install the latest version of ESET Mail Security for Microsoft Exchange Server

Solution

Existing customers with a valid business subscription for ESET Mail Security for Microsoft Exchange Server can upgrade to the latest version of the same application for free. Below are the best practices for upgrading ESET Mail Security for Microsoft Exchange Server to the latest version.

Before upgrading to ESET Mail Security for Microsoft Exchange Server version 10.x and later

ESET Mail Security for Microsoft Exchange Server can only be managed using ESET PROTECT On-Prem 11.1 and later or ESET PROTECT (cloud version). Upgrade to the latest version of ESET PROTECT On-Prem.

1. Perform a Windows Server Backup on your Microsoft Exchange Server. See the Microsoft Learn article for assistance.

2. Ensure your ESET Mail Security for Microsoft Exchange Server activation key is available. If you have lost this information or need to request your subscription information, visit the Lost Subscription page.

3. If installing ESET Mail Security for Microsoft Exchange Server on Windows Server 2016 and later, check Microsoft Defender Antivirus compatibility with other security applications. After installation of another antivirus application, Microsoft Defender Antivirus should be automatically set to the passive mode to prevent problems caused by having multiple antivirus applications installed on a machine. See the linked article for more details and exceptions.

4. Verify that you do not have any pending Windows Updates. If you do, this might cause the migration to fail.

Choose an upgrade method

In-place upgrade method

You can upgrade ESET Mail Security for Microsoft Exchange Server without uninstalling the existing version by installing the new version on top of the existing one. If you decide on this upgrade method, continue to the installation part.

Uninstall an earlier version of ESET Mail Security for Microsoft Exchange Server

1. You can export settings from your existing ESET Mail Security for Microsoft Exchange Server to preserve the configuration.

2. Uninstall the earlier version of ESET Mail Security for Microsoft Exchange Server.

   Errors during uninstallation

   If you encounter errors when uninstalling ESET Mail Security for Microsoft Exchange Server, uninstall the ESET application manually using the ESET Uninstaller tool.

3. Restart the server after uninstalling ESET Mail Security for Microsoft Exchange Server.

4. Continue to the installation part below to install the latest version of ESET Mail Security for Microsoft Exchange Server.

Install the latest version of ESET Mail Security for Microsoft Exchange Server

Follow the instructions to install the latest version of ESET Mail Security for Microsoft Exchange Server.