[Mailman-Developers] Need more information about the GSoC idea 'GitLab/development tools integration'

[Mark Sapiro]

On 03/12/2016 01:44 PM, Richard Damon wrote:

> 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.


Richard's answer is generally good, but the name of the header is
Message-Id:, not Reference-Id:

The definitive reference on threading is
<https://www.jwz.org/doc/threading.html>

Some mail clients (mostly Microsoft ones I think) put a Thread-Index:
header in messages, but for various reasons this is not useful for
determining threading on an email list with posts from many sources.

-- 
Mark Sapiro <mark at msapiro.net>        The highway is for gamblers,
San Francisco Bay Area, California    better use your sense - B. Dylan