[Users] Message-ID

RW rwmaillists at googlemail.com
Thu Jan 31 23:15:43 CET 2013


On Thu, 31 Jan 2013 10:45:31 -0500
Rich Pieri wrote:

> 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. 

Whether it's right or wrong, it's certainly not disingenuous.


> 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.

It depends on where the rewrite occurs, there isn't any reference
header in the first mail in a thread. Aside from threading by subject
the only standard way to connect that to rest of the thread is by its
Message-ID.




   




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