An extension to IMAP BODYSTRUCTURE for returning Content-Location information

Document Type Replaced Internet-Draft (individual)
Last updated 2013-10-18 (latest revision 2002-06-05)
Replaced by draft-crispin-imapv
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


The [IMAP4] BODYSTRUCTURE FETCH data item allows a client to learn about the MIME structure of a message without the need to download the entire message. This document extends the syntax of the [IMAP4] BODYSTRUCTURE FETCH response data item to include information from the Content-Location header field described in [MHTML]. This extension helps MHTML-aware IMAP clients to save both the number of round trips and the amount of information sent across the network. Fallback strategies are also discussed when an IMAP server doesn't support this extension.


Mark Crispin (
Steve Hole (
Alexey Melnikov (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)