How to Manage Associations for File Name Extensions

Internet message formats are used when messages are sent to or received from an Internet client. The file name extensions that you define for each MIME type enable clients to recognize mail attachments and open them. By default, several content types are associated with file name extensions. This procedure outlines how you can manage the associations for file name extensions.

Procedure

To manage associations for file name extensions

1. In Exchange System Manager, expand Global Settings, right-click Internet Message Formats, and then click Properties.

2. On the General tab (see the following figure), use the following options:

   • To associate a new file name extension with a MIME type, click Add.

   • To prioritize the associated extension that Exchange uses with each MIME type, click Move Up to move the extension up the list or Move Down to move the extension down the list. If two associated extensions exist for a single MIME type, Exchange uses the extension that appears higher on the list.

   List of MIME content types on the General tab