Message IDs (was Re: PGP: sequencing messages)

[Simon Bowring]

On Mon, 10 Apr 2000 11:04:31 -0300 (ADT), Trevor Smith wrote:

>Actually, no. PMMail/2 does not need to generate its own Message-Ids
>to thread outgoing messages. It already adds an "In-Reply-To:" header
>line which lists the Message-Id of the message it is replying to.
>This is all that is needed for threading of outgoing messages. In
>fact, the Message-Id line isn't really any good for threading
>outgoing messages, since it is unique to each new message.

Ok! You're right of course, but before I give up completely...!

Consider a message that I send (but not in-reply-to anything),
how are incoming messages going to get threaded off it (if
PMMail doesn't invent/know the original message id, the 
in-reply-to's from the incoming messages can't be matched)?

Simon