[Users] Message-ID

[Rich Pieri]

On Thu, 31 Jan 2013 02:42:16 +0000
RW <rwmaillists at googlemail.com> wrote:

> Reference headers make it possible to keep a thread together when
> there are missing messages, but they don't avoid the need for
> Message-IDs. 

That's a disingenuous statement. Message-IDs are not necessary for
threading. They're useful, certainly, but there are ways to maintain
thread coherency in the face of Message-ID rewrites.

-- 
Rich P.