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Re: [ietf-smtp] Fwd: I-D Action: draft-melnikov-smtp-metadata-00.txt

2015-03-22 16:15:29

On 3/22/2015 4:48 PM, Alexey Melnikov wrote:
Constructive feedback would be very much appreciated!

I think this document can benefit from a more extensive introduction. I
mainly like to know why a `clean separation of transaction-related state
from the message itself' is necessary. What can go wrong if it isn't
passed separately? What are the main benefits? What are the applications
where this is relevant? I can take a few guesses for things like keying
material, but the rationale for passing trace information like that is
much less obvious. I see some hints throughout the text, but I think
making this clear in the induction is important.

Also, what is the application of being able to pass IMAP flags in SMTP?
Normally, I wouldn't want to give the sender the ability to assign flags
directly. And how would these flags interact with Sieve imap4flags?



-------- Original Message --------
Subject:      I-D Action: draft-melnikov-smtp-metadata-00.txt
Date:         Sat, 07 Mar 2015 12:25:40 -0800
From:         internet-drafts(_at_)ietf(_dot_)org
Reply-To:     internet-drafts(_at_)ietf(_dot_)org
To:   <i-d-announce(_at_)ietf(_dot_)org>

A New Internet-Draft is available from the on-line Internet-Drafts 

        Title           : Simple Mail Transfer Protocol extension for 
relaying Metadata
        Author          : Alexey Melnikov
      Filename        : draft-melnikov-smtp-metadata-00.txt
      Pages           : 11
      Date            : 2015-03-07

   This memo defines an extension to the SMTP (Simple Mail Transfer
   Protocol) service whereby message metadata (such as Trace header
   fields, IMAP flags, Keying material, etc) can be transferred in
   separate containers similar to BDAT (RFC 3030, SMTP CHUNKING)
   command.  This allows clean separation of transaction related state
   from the message itself.

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