These following file and its two entries define how to add .JPG and
 .JPEG files with a "Content-Type" of image/jpg, and an "Encoding" of
 Base64.

 # MIME File Type Information File
 #
 #       These entries are used when adding MIME attachments.
 #
 # '#' is a comment delimiter
 #
 # Example:
 #
 #       File Extension:    Content-Type:   Encoding:
 #       ---------------    -------------   ---------
 #
 #       jpg,               image/jpg,      Base64
 #       jpeg,              image/jpeg,     Base64
 #
 # Other examples can be copied from Netscape's MIME.TYPES
 #
 #
 # DECsound
 aud , audio/x-aud , base64
 #
 # WAV
         wav,            audio/x-wav,    Base64
 #
 # JPG
 jpg, image/jpg, Base64
 jpeg, image/jpeg, Base64
 #
 #
 # CDA Viewer
 ps, application/ps, Base64
 ddif, application/ddif, Base64
 #
 # PDF
 pdf, application/pdf, Base64
 #
 # For PC applications we don't have
 # ---------------------------------
 doc, application/msword, Base64
 xls, application/xls,    Base64
 ppt, application/ppt,    Base64