Quick question for interest's sake

[Peter Humphrey]

On Wednesday, 7 March 2018 19:42:27 GMT Ingo Klöcker wrote:

> If the "Standard Mailing List" aggregration is enabled, then KMail threads
> (in this order of preference) by:
> 1.) In-Reply-To
> 2.) References
> 3.) Subject

> ... I don't understand why KMail doesn't thread by subject instead.

It's more logical, for one thing: if a message is a reply to another one, it 
should appear just after it. The thread is linked by all three fields, but 
the Subject header can be changed at whim by a user or his MUA. That would 
destroy the thread.

Maybe I've taken you out of context...

-- 
Regards,
Peter.