Re: [unrev-II] OHS / DKR problem revisited

From: Eric Armstrong (eric.armstrong@eng.sun.com)
Date: Thu Jan 04 2001 - 21:06:35 PST

  • Next message: Eric Armstrong: "Re: [unrev-II] Is "bootstrapping" part of the problem?"

    Great stuff. This is one I would like to hoist to the top
    of the discussion, and place under a banner named "What
    should we use for identifiers?" Oh for IBIS...

    David L Robinson wrote:
    >
    > At 8:04 -0800 22/12/2000, Garold L. Johnson wrote:
    >
    > >
    > > [Garold L. Johnson] The major problems with email all relate to
    > > linking, at least to a first approximation. Since emails have no
    > > unique identifiers, tying even a reply to a specific email much less
    > > a specific reference is difficult since there is nothing unique to
    > > which an email can refer. Hence we end up doing a lot of quoting
    > > because we can't refer to an email uniquely much less in a fine
    > > grained way, and there is no way of knowing how much of the email
    > > traffic any new viewer has.
    > >
    > > Egroups assigns a message number to every message it receives, but
    > > that number is not reflected in the email that is sent to the list.
    > > The originator doesn't know it since it isn't assigned until it is
    > > received by egroup.
    >
    > Just a note on the unique identifiers point. E-mail does have a unique
    > identifier its called Message-ID.
    > See http://community.roxen.com/developers/idocs/rfc/rfc2392.html
    >
    > The RFC 2392 also mentions unique identifiers to content (CID). So you
    > could have a MIME e-mail with each paragraph a MIME entity with a
    > unique CID which could easily be cross referenced just like a HTML "A
    > NAME=" Tag.
    >
    > Usually the E-mail body is just one MIME entity as no one has thought
    > about the benefits of having each paragraph a MIME entity. An
    > advantage of using this RFC is standard E-mail clients can be modified
    > so linking to specific parts of a past E-mail would be possible.
    >
    > --
    > David Robinson
    > drobinso@nrg.com.au
    > ICQ# 8955819
    > SMITH'S LAW: No real problem has a solution.
    > Me(I Think): Real Geeks never die. Their E-mail addresses just bounce.
    > Send Urgent messages to urgent@drobinson.com.au The Subject is sent to
    > my Pager.
    >
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