On 3/12/16 4:19 PM, Wasim Thabraze wrote:
Hello everyone,
The GSoC idea states 'a tool that will take a thread from a Mailman
mailing list and..'. I just wanted to know what are the different ways to
extract a thread from a mailing list.
I'm actually trying to understand the idea from a couple of days but in
vain. I couldn't even find documentations related to thread extraction.
Does a thread has any unique id? If yes, how should I extract the thread
using the id?
Any links that would help me in understanding it in a much more better way?
Awaiting reply.
Thank You
Regards,
Wasim
The normal definition of the 'Thread' is a chain of message linked by
In-Reply-To: and References: headers to Reference-Id: headers.
Every email message has a unique Reference-Id: header to identify it.
When a person replies to that message, their email program is supposed
to add a In-Reply-To: header with the Reference-Id of the message it is
a reply to, or a References: header with a copy of the References:
header of the message being replied to with the Reference-Id of the
replied to message added at the beginning (and possibly ones at the end
trimmed if the header gets too long). This chain defines a 'Thread'.
One wrinkle is with plain text digest users, they tend to not have the
Reference-Id of the message they are replying to (one of the limitations
of the plain text digest) so they tend to break threads. The one big
issue here is that they also often send a message by replying to the
digest, so two messages that refer to the same message in In-Reply-To:
or References: headers might not want to be linked together as a thread
if the common Message-Id isn't present (it is likely the digest). I
think this is what the current mailman 2 archives do.
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