Hadmut,
1. How is that different from the Message-ID of the first message in
the thread?
HD> The Message-ID is just a relation to the first message in a thread.
HD> It is not a relation to a particular domain or mail address.
Oh?
This is from the message you sent:
Message-ID: <20040211214408(_dot_)GA16028(_at_)danisch(_dot_)de>
That thing on the right-hand side looks like a domain name. So if you
mean something else as being 'not a relation to a particular domain' I
don't have a guess. Please clarify.
HD> The thread-Message-ID is useful only as long as you reply to
HD> another message of the same thread. When you leave the thread or
HD> do send a new message, it's gone.
I have no idea what you are talking about. Pleasew clarify.
When you reply to a message in a thread, you can use that message's
message-id or you can use any other message-id, which will thereby
couple your response to the message with the referenced message-id.
my comment about sub-threads was meant to highlight that threads are not
nearly as neat and clean a concept as folks might think. They have
variable structure and, often, subjective assessment involved. Even the
start of a thread can sometimes be difficult to determine.
HD> Furthermore, it is sent to
HD> everybody on the same thread. This mechanism is intended to
HD> allow the MUA to sort the messages into threads and display them.
Again, why can't message-ids be used for this? And why does it need an
external standard?
It will probably help to hear what problem this is intended to solve, in
terms of the humans who are participating in the exchange.
d/
--
Dave Crocker <dcrocker-at-brandenburg-dot-com>
Brandenburg InternetWorking <www.brandenburg.com>
Sunnyvale, CA USA <tel:+1.408.246.8253>