Context labels for Internet Messages2002-08-082004-10-26Internet Message Content TypesRFC Requiredfax-messageIndicates a message whose primary content is a fax
mail message. The primary content is image data.
The context is usually a message recorded from
a facsimile telephone call.multimedia-messageIndicates a message whose primary content is
a multimedia message. The primary content is
multimedia, most likely MHTML. The context is
often spam or newsletters.NoneIndicates an unknown message context.pager-messageIndicates a message whose primary content is a page.
The primary content is text data. The context is
an urgent message usually of a limited length.text-messageIndicates a classic, text-based, Internet message.video-messageIndicates a message whose primary content is a video
mail message. The primary content is video data.
The context is usually a message recorded using
a video camera, or a message whose primary purpose
is to contain an external reference to a message
recorded using a video camera.voice-messageIndicates a message whose primary content is a voice
mail message. The primary content is audio data.
The context is usually a message recorded from
a voice telephone call.