EDITING THE MIME TABLE
This page allows you to edit the MIME table by performing the following steps below:

  1. Enter the 1-10 character extension for files of this type. This field cannot have the same value for multiple records.
  2. Enter a textual description of the file type. It is added to the MIME content-description header field in outgoing messages.
  3. Enter the MIME Content-Type in the textbox provided. The MIME content-type field has two parts: the content type and the content sub-type. The Content-Type should be one of the following primary values defined by the MIME specification:
      text image audio video application message
  4. Enter the MIME Content sub-type in the textbox provided. The second part of the MIME Content-Type field is specified here. Many standard types are already configured into Internet Exchange. If others are needed and are not defined by the MIME standard, create a custom value. These types should begin with an x and a hyphen (e.g. x-custom).
  5. Select your preferred encoding method from the pull-down menu. The system administrator may select a MIME Content-Transfer-Encoding method used to encode any non-textual data so that it can be sent across the Internet. For binary files,base64 is the best selection. For text files containing some 8-bit data, use the value quoted-printable. For plain text files, select 7-bit. A custom value of x-uue is included for sending messages with attachments encoded with UUENCODE to sites that cannot handle MIME. The use of this value, however, is not recommended and should not be used when sending messages to MIME-capable sites.
  6. Enter the four-character type field in the Mac file type header.
  7. Enter the four-character type field in the Mac file creator header. The Macintosh file system is much more advanced than the DOS/Windows file system. The Operating System (OS) uses the file extension (e.g. .TXT, .DOC.) to associate an application. The Macintosh OS stores some extra information (attributes) in the data file. There is an attribute called TYPE/CREATOR (4 bytes each) that is used to combine an 8-byte string calling for Finder INFO. This is used by the OS to determine the correct application to open the data file.

    For Macintosh users, you can also define the MAC Finder (Type and Creator) values. Notice that the Type and Creator values are case sensitive. If you see "----" in the Mac file type and/or Mac file creator field, it means that these two values are not used.

  8. After editing, click the Save button to store the changes you have made.