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multipart
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Specifies a MIME message composed of several parts with possible different Content-Type fields.
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Parts are separated by a boundary string, specified in the multipart header entry
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Subtypes: mixed (serial combination of media), parallel (for parallel presentation if possible), alternative (multiple representations of the same data) and digest (all parts are messages)
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| 2 |
message
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Subtypes: rfc822 (standard ARPA e-mail format), partial (a single chunk of a larger message, chopped into pieces for transmission and then reassembled), external-body (pointer to a remote data - similar to typerlink/URL but different representation)
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| 3 |
application
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Current subtypes: postscript, ODA
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Placeholder for "anything else" - several interactive/custom/creative extensions expected here
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Already registered: Andrew-inset,t ATOMICMAIL (Bellcore)
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