# MIME/DIME Settings

## Contents
Overview Configuration

## Overview
The MIME/DIME Settings dialog lists a number of default common content types that are used when transmitting MIME messages. The Enterprise Gateway's Content Type filter can be configured to accept or block messages containing specific MIME types. Therefore, the contents of the MIME types library acts as the set of all MIME types that the Enterprise Gateway can filter messages with. All of the MIME types listed in the table are available for selection in the Content Type filter. For example, you can configure this filter to only accept XML-based types, such as `application/xml`, `application/*+xml`, `text/xml`, and so on. Similarly, you can block certain MIME types (for example, `application/zip`, `application/octet-stream`, and `video/mpeg`). For more details on configuring this filter, see the Content Type filter topic.
## Configuration
To configure the MIME/DIME Settings, in the Policy Studio main menu, select Settings -> Settings -> MIME/DIME. This displays the MIME/DIME Settings> dialog. Alternatively, in the toolbar, click the drop-down option on the Settings button , and select MIME/DIME. The MIME/DIME Settings dialog lists the actual MIME types on the left column of the table, together with their corresponding file extensions (where applicable) on the right column. To add a new MIME type, click the Add button. In the Configure MIME/DIME Type dialog, enter the new content type in the MIME or DIME Type field. If the new type has a corresponding file extension, enter this extension in the Extension field. Click the OK button when finished. Similarly, existing types can be edited and removed by clicking on the Edit and Delete buttons, respectively.