Start Outlook with an account that has permissions to change the Outlook Security Form in the Outlook 10 Security Settings public folder.

If you have an Exchange environment that uses the Outlook Security Administrator Package and you want to add more attachment file name extensions that you want to block in your Outlook configuration, you can add more attachment file name extensions to the Level 1 file list. How to block attachment file name extensions in an Exchange environment with the Outlook Security Administrator Package The following methods describe how to customize your security settings for different Outlook configurations with and without Exchange. How to customize your security settings to block additional attachment file name extensions If you use Outlook in a Microsoft Exchange environment, you can configure the server to block certain attachment file name extensions by using the Outlook E-mail Security Administrator Package.Īdditionally, this article includes information about how to customize your security settings for different Outlook configurations with and without Exchange. This article describes how to configure Microsoft Outlook to block attachment file name extensions that Outlook does not block by default.

How to view file types in the name