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Initial modules update

The installer contains only essential modules, which reduces network traffic related to the size of the installer and saves resources. After the product activation, all other modules will download during the initial module update. The main advantage is a significantly smaller installer, and ESET Mail Security downloads only the latest application modules when you activate the product.

The minimal module installer contains the following modules:


Anti-Stealth support

Direct Cloud communication

Translation support



After the product activation, you will see the Initializing protection status, which notifies you about the features initializing.



If you experience problems downloading the modules (for example, no network connection, firewall or proxy settings), a warning application status Attention required displays.

Click Update > Check for updates in the main program window to start the updating process again.

After several unsuccessful attempts, a red application status Protection setup failed displays. If you cannot update the modules, download the full ESET Mail Security .msi installer.

If your server does not have an internet connection and needs updates, use the following methods to download update module files from ESET update servers:

Updating from the Mirror

Using Mirror Tool